125187520 has 56 divisors (see below), whose sum is σ = 299795184. Its totient is φ = 49790976.

The previous prime is 125187499. The next prime is 125187529. The reversal of 125187520 is 25781521.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125187529) 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, 60747 + ... + 62773.

Almost surely, 2^125187520 is an apocalyptic number.

125187520 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 125187520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149897592).

125187520 is an abundant number, since it is smaller than the sum of its proper divisors (174607664).

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

125187520 is a wasteful number, since it uses less digits than its factorization.

125187520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237 (or 2227 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 125187520 is about 11188.7228940572. The cubic root of 125187520 is about 500.2499017441.

The spelling of 125187520 in words is "one hundred twenty-five million, one hundred eighty-seven thousand, five hundred twenty".