125312040 has 96 divisors (see below), whose sum is σ = 465454080. Its totient is φ = 28642176.

The previous prime is 125312021. The next prime is 125312053. The reversal of 125312040 is 40213521.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22344 + ... + 27383.

It is an arithmetic number, because the mean of its divisors is an integer number (4848480).

Almost surely, 2^125312040 is an apocalyptic number.

125312040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125312040 is an abundant number, since it is smaller than the sum of its proper divisors (340142040).

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

125312040 is a wasteful number, since it uses less digits than its factorization.

125312040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49751 (or 49744 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 125312040 is about 11194.2860424415. The cubic root of 125312040 is about 500.4157076119.

Adding to 125312040 its reverse (40213521), we get a palindrome (165525561).

The spelling of 125312040 in words is "one hundred twenty-five million, three hundred twelve thousand, forty".