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125134213 = 131955223
BaseRepresentation
bin1110111010101…
…10010110000101
322201110110212111
413131112112011
5224013243323
620230021021
73046423531
oct735262605
9281413774
10125134213
11646a9206
1235aa7771
131cc03b19
1412894bc1
15aebbc0d
hex7756585

125134213 has 4 divisors (see below), whose sum is σ = 126089568. Its totient is φ = 124178860.

The previous prime is 125134199. The next prime is 125134277. The reversal of 125134213 is 312431521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125134213 - 213 = 125126021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125134313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477481 + ... + 477742.

It is an arithmetic number, because the mean of its divisors is an integer number (31522392).

Almost surely, 2125134213 is an apocalyptic number.

It is an amenable number.

125134213 is a deficient number, since it is larger than the sum of its proper divisors (955355).

125134213 is an equidigital number, since it uses as much as digits as its factorization.

125134213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955354.

The product of its digits is 720, while the sum is 22.

The square root of 125134213 is about 11186.3404650493. The cubic root of 125134213 is about 500.1788866582.

Adding to 125134213 its reverse (312431521), we get a palindrome (437565734).

The spelling of 125134213 in words is "one hundred twenty-five million, one hundred thirty-four thousand, two hundred thirteen".

Divisors: 1 131 955223 125134213