102149044 has 12 divisors (see below), whose sum is σ = 178831744. Its totient is φ = 51054264.

The previous prime is 102149029. The next prime is 102149059. The reversal of 102149044 is 440941201.

It is an interprime number because it is at equal distance from previous prime (102149029) and next prime (102149059).

It is a super-2 number, since 2×102149044² = 20868854380227872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16189 + ... + 21595.

Almost surely, 2^102149044 is an apocalyptic number.

It is an amenable number.

102149044 is a deficient number, since it is larger than the sum of its proper divisors (76682700).

102149044 is a wasteful number, since it uses less digits than its factorization.

102149044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10134 (or 10132 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 102149044 is about 10106.8810223530. The cubic root of 102149044 is about 467.4603380805.

The spelling of 102149044 in words is "one hundred two million, one hundred forty-nine thousand, forty-four".