100864515 has 8 divisors (see below), whose sum is σ = 161383248. Its totient is φ = 53794400.

The previous prime is 100864481. The next prime is 100864549. The reversal of 100864515 is 515468001.

It is an interprime number because it is at equal distance from previous prime (100864481) and next prime (100864549).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100864515 - 2⁸ = 100864259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3362136 + ... + 3362165.

It is an arithmetic number, because the mean of its divisors is an integer number (20172906).

Almost surely, 2^100864515 is an apocalyptic number.

100864515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100864515 is a deficient number, since it is larger than the sum of its proper divisors (60518733).

100864515 is an equidigital number, since it uses as much as digits as its factorization.

100864515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724309.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 100864515 is about 10043.1327283871. The cubic root of 100864515 is about 465.4926216477.

The spelling of 100864515 in words is "one hundred million, eight hundred sixty-four thousand, five hundred fifteen".