125102115 has 12 divisors (see below), whose sum is σ = 216843744. Its totient is φ = 66721104.

The previous prime is 125102113. The next prime is 125102171. The reversal of 125102115 is 511201521.

It is not a de Polignac number, because 125102115 - 2¹ = 125102113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125102113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1389979 + ... + 1390068.

It is an arithmetic number, because the mean of its divisors is an integer number (18070312).

Almost surely, 2^125102115 is an apocalyptic number.

125102115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125102115 is a deficient number, since it is larger than the sum of its proper divisors (91741629).

125102115 is a wasteful number, since it uses less digits than its factorization.

125102115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780058 (or 2780055 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 125102115 is about 11184.9056768486. The cubic root of 125102115 is about 500.1361162747.

Adding to 125102115 its reverse (511201521), we get a palindrome (636303636).

The spelling of 125102115 in words is "one hundred twenty-five million, one hundred two thousand, one hundred fifteen".