102144915 has 16 divisors (see below), whose sum is σ = 181591200. Its totient is φ = 54477216.

The previous prime is 102144883. The next prime is 102144929. The reversal of 102144915 is 519441201.

It is not a de Polignac number, because 102144915 - 2⁵ = 102144883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378180 + ... + 378449.

It is an arithmetic number, because the mean of its divisors is an integer number (11349450).

Almost surely, 2^102144915 is an apocalyptic number.

102144915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102144915 is a deficient number, since it is larger than the sum of its proper divisors (79446285).

102144915 is an equidigital number, since it uses as much as digits as its factorization.

102144915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756643 (or 756637 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 102144915 is about 10106.6767535130. The cubic root of 102144915 is about 467.4540395398.

It can be divided in two parts, 10214 and 4915, that added together give a square (15129 = 123²).

The spelling of 102144915 in words is "one hundred two million, one hundred forty-four thousand, nine hundred fifteen".