102855290 has 16 divisors (see below), whose sum is σ = 188278560. Its totient is φ = 40444560.

The previous prime is 102855239. The next prime is 102855307. The reversal of 102855290 is 92558201.

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 7 ways as a sum of consecutive naturals, for example, 86576 + ... + 87755.

It is an arithmetic number, because the mean of its divisors is an integer number (11767410).

Almost surely, 2^102855290 is an apocalyptic number.

102855290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102855290 is a deficient number, since it is larger than the sum of its proper divisors (85423270).

102855290 is a wasteful number, since it uses less digits than its factorization.

102855290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174397.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 102855290 is about 10141.7597092418. The cubic root of 102855290 is about 468.5351859574.

The spelling of 102855290 in words is "one hundred two million, eight hundred fifty-five thousand, two hundred ninety".