102855506 has 16 divisors (see below), whose sum is σ = 166318488. Its totient is φ = 47424000.

The previous prime is 102855497. The next prime is 102855539. The reversal of 102855506 is 605558201.

It can be written as a sum of positive squares in 4 ways, for example, as 40208281 + 62647225 = 6341^2 + 7915^2 .

It is a super-2 number, since 2×102855506² = 21158510229032072, which contains 22 as substring.

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, 48386 + ... + 50466.

Almost surely, 2^102855506 is an apocalyptic number.

102855506 is a deficient number, since it is larger than the sum of its proper divisors (63462982).

102855506 is a wasteful number, since it uses less digits than its factorization.

102855506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 102855506 is about 10141.7703582757. The cubic root of 102855506 is about 468.5355139377.

The spelling of 102855506 in words is "one hundred two million, eight hundred fifty-five thousand, five hundred six".