125651740 has 24 divisors (see below), whose sum is σ = 264408480. Its totient is φ = 50157888.

The previous prime is 125651707. The next prime is 125651749. The reversal of 125651740 is 47156521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125651749) 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, 4009 + ... + 16351.

It is an arithmetic number, because the mean of its divisors is an integer number (11017020).

Almost surely, 2^125651740 is an apocalyptic number.

125651740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125651740 is an abundant number, since it is smaller than the sum of its proper divisors (138756740).

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

125651740 is a wasteful number, since it uses less digits than its factorization.

125651740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12861 (or 12859 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 125651740 is about 11209.4486929554. The cubic root of 125651740 is about 500.8674807506.

The spelling of 125651740 in words is "one hundred twenty-five million, six hundred fifty-one thousand, seven hundred forty".