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124225531 = 2941104479
BaseRepresentation
bin1110110011110…
…00011111111011
322122202022101121
413121320133323
5223300204111
620154330111
73035620363
oct731703773
9278668347
10124225531
1164138531
1235729937
131c976341
14126d99a3
15ad8c871
hex76787fb

124225531 has 8 divisors (see below), whose sum is σ = 131644800. Its totient is φ = 117015360.

The previous prime is 124225513. The next prime is 124225547. The reversal of 124225531 is 135522421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124225531 - 25 = 124225499 is a prime.

It is a super-2 number, since 2×1242255312 = 30863965104463922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124225496 and 124225505.

It is not an unprimeable number, because it can be changed into a prime (124225561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51051 + ... + 53428.

It is an arithmetic number, because the mean of its divisors is an integer number (16455600).

Almost surely, 2124225531 is an apocalyptic number.

124225531 is a deficient number, since it is larger than the sum of its proper divisors (7419269).

124225531 is a wasteful number, since it uses less digits than its factorization.

124225531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104549.

The product of its digits is 2400, while the sum is 25.

The square root of 124225531 is about 11145.6507661060. The cubic root of 124225531 is about 498.9652346654.

Adding to 124225531 its reverse (135522421), we get a palindrome (259747952).

The spelling of 124225531 in words is "one hundred twenty-four million, two hundred twenty-five thousand, five hundred thirty-one".

Divisors: 1 29 41 1189 104479 3029891 4283639 124225531