125315044040 has 32 divisors (see below), whose sum is σ = 282106412280. Its totient is φ = 50099784192.

The previous prime is 125315044021. The next prime is 125315044079. The reversal of 125315044040 is 40440513521.

125315044040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 123199596004 + 2115448036 = 350998^2 + 45994^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125315043994 and 125315044012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742319 + ... + 895358.

Almost surely, 2^125315044040 is an apocalyptic number.

125315044040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125315044040 is an abundant number, since it is smaller than the sum of its proper divisors (156791368240).

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

125315044040 is a wasteful number, since it uses less digits than its factorization.

125315044040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639601 (or 1639597 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 125315044040 its reverse (40440513521), we get a palindrome (165755557561).

The spelling of 125315044040 in words is "one hundred twenty-five billion, three hundred fifteen million, forty-four thousand, forty".