102499992 has 160 divisors (see below), whose sum is σ = 334540800. Its totient is φ = 28714176.

The previous prime is 102499973. The next prime is 102499993. The reversal of 102499992 is 299994201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102499993) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 267433 + ... + 267815.

It is an arithmetic number, because the mean of its divisors is an integer number (2090880).

Almost surely, 2^102499992 is an apocalyptic number.

102499992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102499992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167270400).

102499992 is an abundant number, since it is smaller than the sum of its proper divisors (232040808).

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

102499992 is a wasteful number, since it uses less digits than its factorization.

102499992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 102499992 is about 10124.2279705664. The cubic root of 102499992 is about 467.9950689816.

The spelling of 102499992 in words is "one hundred two million, four hundred ninety-nine thousand, nine hundred ninety-two".