125916740 has 24 divisors (see below), whose sum is σ = 270876312. Its totient is φ = 49137920.

The previous prime is 125916733. The next prime is 125916787. The reversal of 125916740 is 47619521.

It can be written as a sum of positive squares in 4 ways, for example, as 16128256 + 109788484 = 4016^2 + 10478^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125916740.

It is an unprimeable number.

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, 75959 + ... + 77598.

It is an arithmetic number, because the mean of its divisors is an integer number (11286513).

Almost surely, 2^125916740 is an apocalyptic number.

125916740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125916740 is an abundant number, since it is smaller than the sum of its proper divisors (144959572).

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

125916740 is a wasteful number, since it uses less digits than its factorization.

125916740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153607 (or 153605 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 125916740 is about 11221.2628522818. The cubic root of 125916740 is about 501.2193439833.

The spelling of 125916740 in words is "one hundred twenty-five million, nine hundred sixteen thousand, seven hundred forty".