102090964 has 6 divisors (see below), whose sum is σ = 178659194. Its totient is φ = 51045480.

The previous prime is 102090931. The next prime is 102090983. The reversal of 102090964 is 469090201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 101203600 + 887364 = 10060^2 + 942^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12761367 + ... + 12761374.

Almost surely, 2^102090964 is an apocalyptic number.

It is an amenable number.

102090964 is a deficient number, since it is larger than the sum of its proper divisors (76568230).

102090964 is a wasteful number, since it uses less digits than its factorization.

102090964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25522745 (or 25522743 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 102090964 is about 10104.0073238295. The cubic root of 102090964 is about 467.3717249368.

The spelling of 102090964 in words is "one hundred two million, ninety thousand, nine hundred sixty-four".