102451992 has 32 divisors (see below), whose sum is σ = 257207280. Its totient is φ = 34007040.

The previous prime is 102451991. The next prime is 102452003. The reversal of 102451992 is 299154201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102451991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3073 + ... + 14640.

Almost surely, 2^102451992 is an apocalyptic number.

102451992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102451992 is an abundant number, since it is smaller than the sum of its proper divisors (154755288).

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

102451992 is a wasteful number, since it uses less digits than its factorization.

102451992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17963 (or 17959 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 102451992 is about 10121.8571418490. The cubic root of 102451992 is about 467.9220046807.

The spelling of 102451992 in words is "one hundred two million, four hundred fifty-one thousand, nine hundred ninety-two".