139732992 has 288 divisors, whose sum is σ = 499262400. Its totient is φ = 37822464.

The previous prime is 139732951. The next prime is 139733017. The reversal of 139732992 is 299237931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (288).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7354359 + ... + 7354377.

It is an arithmetic number, because the mean of its divisors is an integer number (1733550).

Almost surely, 2^139732992 is an apocalyptic number.

139732992 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 139732992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249631200).

139732992 is an abundant number, since it is smaller than the sum of its proper divisors (359529408).

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

139732992 is an equidigital number, since it uses as much as digits as its factorization.

139732992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 31 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 139732992 is about 11820.8710338959. The cubic root of 139732992 is about 518.9190959459.

The spelling of 139732992 in words is "one hundred thirty-nine million, seven hundred thirty-two thousand, nine hundred ninety-two".