125145312132 has 24 divisors (see below), whose sum is σ = 292040534016. Its totient is φ = 41710131808.

The previous prime is 125145312119. The next prime is 125145312137. The reversal of 125145312132 is 231213541521.

It is a happy number.

It is a super-2 number, since 2×125145312132² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125145312132.

It is not an unprimeable number, because it can be changed into a prime (125145312137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515943 + ... + 718670.

It is an arithmetic number, because the mean of its divisors is an integer number (12168355584).

Almost surely, 2^125145312132 is an apocalyptic number.

125145312132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125145312132 is an abundant number, since it is smaller than the sum of its proper divisors (166895221884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125145312132 is a wasteful number, since it uses less digits than its factorization.

125145312132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243067 (or 1243065 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

Adding to 125145312132 its reverse (231213541521), we get a palindrome (356358853653).

The spelling of 125145312132 in words is "one hundred twenty-five billion, one hundred forty-five million, three hundred twelve thousand, one hundred thirty-two".