125371515 has 16 divisors (see below), whose sum is σ = 212394528. Its totient is φ = 62931456.

The previous prime is 125371511. The next prime is 125371523. The reversal of 125371515 is 515173521.

It is not a de Polignac number, because 125371515 - 2² = 125371511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125371511) 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, 245572 + ... + 246081.

It is an arithmetic number, because the mean of its divisors is an integer number (13274658).

Almost surely, 2^125371515 is an apocalyptic number.

125371515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125371515 is a deficient number, since it is larger than the sum of its proper divisors (87023013).

125371515 is a wasteful number, since it uses less digits than its factorization.

125371515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491678.

The product of its digits is 5250, while the sum is 30.

The square root of 125371515 is about 11196.9422165161. The cubic root of 125371515 is about 500.4948633922.

The spelling of 125371515 in words is "one hundred twenty-five million, three hundred seventy-one thousand, five hundred fifteen".