102665044 has 12 divisors (see below), whose sum is σ = 181408864. Its totient is φ = 50833944.

The previous prime is 102665041. The next prime is 102665071. The reversal of 102665044 is 440566201.

It is a super-2 number, since 2×102665044² = 21080222519043872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102665041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 124182 + ... + 125005.

Almost surely, 2^102665044 is an apocalyptic number.

It is an amenable number.

102665044 is a deficient number, since it is larger than the sum of its proper divisors (78743820).

102665044 is a wasteful number, since it uses less digits than its factorization.

102665044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249294 (or 249292 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 102665044 is about 10132.3760293428. The cubic root of 102665044 is about 468.2461327357.

The spelling of 102665044 in words is "one hundred two million, six hundred sixty-five thousand, forty-four".