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125023 = 3137109
BaseRepresentation
bin11110100001011111
320100111111
4132201133
513000043
62402451
71030333
oct364137
9210444
10125023
1185a28
1260427
1344ba2
14337c3
152709d
hex1e85f

125023 has 8 divisors (see below), whose sum is σ = 133760. Its totient is φ = 116640.

The previous prime is 125017. The next prime is 125029. The reversal of 125023 is 320521.

It is an interprime number because it is at equal distance from previous prime (125017) and next prime (125029).

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 125023 - 25 = 124991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124994 and 125012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1093 + ... + 1201.

It is an arithmetic number, because the mean of its divisors is an integer number (16720).

125023 is a Friedman number, since it can be written as 50^3+22+1, using all its digits and the basic arithmetic operations.

2125023 is an apocalyptic number.

125023 is a deficient number, since it is larger than the sum of its proper divisors (8737).

125023 is a wasteful number, since it uses less digits than its factorization.

125023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 125023 is about 353.5859160091. The cubic root of 125023 is about 50.0030664786.

Adding to 125023 its reverse (320521), we get a palindrome (445544).

The spelling of 125023 in words is "one hundred twenty-five thousand, twenty-three".

Divisors: 1 31 37 109 1147 3379 4033 125023