102108290 has 32 divisors (see below), whose sum is σ = 197095680. Its totient is φ = 37949184.

The previous prime is 102108287. The next prime is 102108301. The reversal of 102108290 is 92801201.

It is a super-2 number, since 2×102108290² = 20852205773448200, which contains 22 as substring.

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, 9629 + ... + 17231.

It is an arithmetic number, because the mean of its divisors is an integer number (6159240).

Almost surely, 2^102108290 is an apocalyptic number.

102108290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102108290 is a deficient number, since it is larger than the sum of its proper divisors (94987390).

102108290 is a wasteful number, since it uses less digits than its factorization.

102108290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7706.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 102108290 is about 10104.8646700488. The cubic root of 102108290 is about 467.3981628772.

Adding to 102108290 its reverse (92801201), we get a palindrome (194909491).

The spelling of 102108290 in words is "one hundred two million, one hundred eight thousand, two hundred ninety".