125902540 has 24 divisors (see below), whose sum is σ = 264751200. Its totient is φ = 50293248.

The previous prime is 125902523. The next prime is 125902541. The reversal of 125902540 is 45209521.

It is a junction number, because it is equal to n+sod(n) for n = 125902499 and 125902508.

It is not an unprimeable number, because it can be changed into a prime (125902541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12636 + ... + 20284.

It is an arithmetic number, because the mean of its divisors is an integer number (11031300).

Almost surely, 2^125902540 is an apocalyptic number.

125902540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125902540 is an abundant number, since it is smaller than the sum of its proper divisors (138848660).

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

125902540 is a wasteful number, since it uses less digits than its factorization.

125902540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8481 (or 8479 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 125902540 is about 11220.6301070840. The cubic root of 125902540 is about 501.2005019499.

The spelling of 125902540 in words is "one hundred twenty-five million, nine hundred two thousand, five hundred forty".