102090852 has 18 divisors (see below), whose sum is σ = 258063078. Its totient is φ = 34030272.

The previous prime is 102090841. The next prime is 102090871. The reversal of 102090852 is 258090201.

It can be written as a sum of positive squares in only one way, i.e., 102090816 + 36 = 10104^2 + 6^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1417893 + ... + 1417964.

Almost surely, 2^102090852 is an apocalyptic number.

102090852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102090852 is an abundant number, since it is smaller than the sum of its proper divisors (155972226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102090852 is a wasteful number, since it uses less digits than its factorization.

102090852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835867 (or 2835862 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 102090852 is about 10104.0017814725. The cubic root of 102090852 is about 467.3715540250.

The spelling of 102090852 in words is "one hundred two million, ninety thousand, eight hundred fifty-two".