102427155 has 24 divisors (see below), whose sum is σ = 179120448. Its totient is φ = 54141696.

The previous prime is 102427133. The next prime is 102427183. The reversal of 102427155 is 551724201.

It is not a de Polignac number, because 102427155 - 2⁵ = 102427123 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4987 + ... + 15156.

It is an arithmetic number, because the mean of its divisors is an integer number (7463352).

Almost surely, 2^102427155 is an apocalyptic number.

102427155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102427155 is a deficient number, since it is larger than the sum of its proper divisors (76693293).

102427155 is a wasteful number, since it uses less digits than its factorization.

102427155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20267 (or 20264 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 102427155 is about 10120.6301681269. The cubic root of 102427155 is about 467.8841895120.

The spelling of 102427155 in words is "one hundred two million, four hundred twenty-seven thousand, one hundred fifty-five".