102909255 has 16 divisors (see below), whose sum is σ = 170333280. Its totient is φ = 52992128.

The previous prime is 102909251. The next prime is 102909307. The reversal of 102909255 is 552909201.

It is a cyclic number.

It is not a de Polignac number, because 102909255 - 2² = 102909251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102909251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117852 + ... + 118721.

It is an arithmetic number, because the mean of its divisors is an integer number (10645830).

Almost surely, 2^102909255 is an apocalyptic number.

102909255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102909255 is a deficient number, since it is larger than the sum of its proper divisors (67424025).

102909255 is a wasteful number, since it uses less digits than its factorization.

102909255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236610.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 102909255 is about 10144.4198947007. The cubic root of 102909255 is about 468.6171136204.

The spelling of 102909255 in words is "one hundred two million, nine hundred nine thousand, two hundred fifty-five".