125311040 has 56 divisors (see below), whose sum is σ = 300090840. Its totient is φ = 49840128.

The previous prime is 125311033. The next prime is 125311093. The reversal of 125311040 is 40113521.

It can be written as a sum of positive squares in 4 ways, for example, as 32535616 + 92775424 = 5704^2 + 9632^2 .

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, 60746 + ... + 62774.

It is an arithmetic number, because the mean of its divisors is an integer number (5358765).

Almost surely, 2^125311040 is an apocalyptic number.

125311040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125311040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150045420).

125311040 is an abundant number, since it is smaller than the sum of its proper divisors (174779800).

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

125311040 is a wasteful number, since it uses less digits than its factorization.

125311040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239 (or 2229 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 125311040 is about 11194.2413767079. The cubic root of 125311040 is about 500.4143764894.

Adding to 125311040 its reverse (40113521), we get a palindrome (165424561).

The spelling of 125311040 in words is "one hundred twenty-five million, three hundred eleven thousand, forty".