125138875 has 16 divisors (see below), whose sum is σ = 157064544. Its totient is φ = 99540000.

The previous prime is 125138873. The next prime is 125138879. The reversal of 125138875 is 578831521.

It is not a de Polignac number, because 125138875 - 2¹ = 125138873 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125138873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19860 + ... + 25390.

It is an arithmetic number, because the mean of its divisors is an integer number (9816534).

Almost surely, 2^125138875 is an apocalyptic number.

125138875 is a deficient number, since it is larger than the sum of its proper divisors (31925669).

125138875 is an equidigital number, since it uses as much as digits as its factorization.

125138875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5727 (or 5717 counting only the distinct ones).

The product of its digits is 67200, while the sum is 40.

The square root of 125138875 is about 11186.5488422480. The cubic root of 125138875 is about 500.1850981356.

The spelling of 125138875 in words is "one hundred twenty-five million, one hundred thirty-eight thousand, eight hundred seventy-five".