103115172 has 12 divisors (see below), whose sum is σ = 240602096. Its totient is φ = 34371720.

The previous prime is 103115153. The next prime is 103115231. The reversal of 103115172 is 271511301.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4296454 + ... + 4296477.

Almost surely, 2^103115172 is an apocalyptic number.

103115172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103115172 is an abundant number, since it is smaller than the sum of its proper divisors (137486924).

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

103115172 is a wasteful number, since it uses less digits than its factorization.

103115172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8592938 (or 8592936 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 103115172 is about 10154.5640969960. The cubic root of 103115172 is about 468.9294662850.

Adding to 103115172 its reverse (271511301), we get a palindrome (374626473).

The spelling of 103115172 in words is "one hundred three million, one hundred fifteen thousand, one hundred seventy-two".