125356540 has 24 divisors (see below), whose sum is σ = 265668480. Its totient is φ = 49681728.

The previous prime is 125356523. The next prime is 125356541. The reversal of 125356540 is 45653521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125356541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26572 + ... + 30931.

It is an arithmetic number, because the mean of its divisors is an integer number (11069520).

Almost surely, 2^125356540 is an apocalyptic number.

125356540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125356540 is an abundant number, since it is smaller than the sum of its proper divisors (140311940).

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

125356540 is a wasteful number, since it uses less digits than its factorization.

125356540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57621 (or 57619 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 125356540 is about 11196.2734871921. The cubic root of 125356540 is about 500.4749353966.

The spelling of 125356540 in words is "one hundred twenty-five million, three hundred fifty-six thousand, five hundred forty".