125315740 has 24 divisors (see below), whose sum is σ = 287087472. Its totient is φ = 45569280.

The previous prime is 125315737. The next prime is 125315747. The reversal of 125315740 is 47513521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 125315699 and 125315708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125315747) 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, 284589 + ... + 285028.

It is an arithmetic number, because the mean of its divisors is an integer number (11961978).

Almost surely, 2^125315740 is an apocalyptic number.

125315740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125315740 is an abundant number, since it is smaller than the sum of its proper divisors (161771732).

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

125315740 is a wasteful number, since it uses less digits than its factorization.

125315740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569637 (or 569635 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 125315740 is about 11194.4513041060. The cubic root of 125315740 is about 500.4206327037.

The spelling of 125315740 in words is "one hundred twenty-five million, three hundred fifteen thousand, seven hundred forty".