125320045137 has 32 divisors (see below), whose sum is σ = 202419523584. Its totient is φ = 67324857600.

The previous prime is 125320045091. The next prime is 125320045177. The reversal of 125320045137 is 731540023521.

It is not a de Polignac number, because 125320045137 - 2⁸ = 125320044881 is a prime.

It is a super-2 number, since 2×125320045137² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125320045098 and 125320045107.

It is not an unprimeable number, because it can be changed into a prime (125320045177) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132562 + ... + 517892.

It is an arithmetic number, because the mean of its divisors is an integer number (6325610112).

Almost surely, 2^125320045137 is an apocalyptic number.

125320045137 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

125320045137 is a deficient number, since it is larger than the sum of its proper divisors (77099478447).

125320045137 is a wasteful number, since it uses less digits than its factorization.

125320045137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386269.

The product of its (nonzero) digits is 25200, while the sum is 33.

Adding to 125320045137 its reverse (731540023521), we get a palindrome (856860068658).

The spelling of 125320045137 in words is "one hundred twenty-five billion, three hundred twenty million, forty-five thousand, one hundred thirty-seven".