100155315 has 24 divisors (see below), whose sum is σ = 173527920. Its totient is φ = 49305984.

The previous prime is 100155301. The next prime is 100155323. The reversal of 100155315 is 513551001.

It is not a de Polignac number, because 100155315 - 2⁸ = 100155059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100155291 and 100155300.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17220 + ... + 22289.

It is an arithmetic number, because the mean of its divisors is an integer number (7230330).

Almost surely, 2^100155315 is an apocalyptic number.

100155315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100155315 is a deficient number, since it is larger than the sum of its proper divisors (73372605).

100155315 is a wasteful number, since it uses less digits than its factorization.

100155315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39543 (or 39530 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 100155315 is about 10007.7627369957. The cubic root of 100155315 is about 464.3990618497.

The spelling of 100155315 in words is "one hundred million, one hundred fifty-five thousand, three hundred fifteen".