139452872 has 32 divisors (see below), whose sum is σ = 286372800. Its totient is φ = 63269184.

The previous prime is 139452871. The next prime is 139452877. The reversal of 139452872 is 278254931.

It is not an unprimeable number, because it can be changed into a prime (139452871) 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 7 ways as a sum of consecutive naturals, for example, 5228 + ... + 17499.

It is an arithmetic number, because the mean of its divisors is an integer number (8949150).

Almost surely, 2^139452872 is an apocalyptic number.

It is an amenable number.

139452872 is an abundant number, since it is smaller than the sum of its proper divisors (146919928).

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

139452872 is a wasteful number, since it uses less digits than its factorization.

139452872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22805 (or 22801 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 139452872 is about 11809.0165551582. The cubic root of 139452872 is about 518.5721083171.

The spelling of 139452872 in words is "one hundred thirty-nine million, four hundred fifty-two thousand, eight hundred seventy-two".