139634272 has 12 divisors (see below), whose sum is σ = 274905036. Its totient is φ = 69817120.

The previous prime is 139634269. The next prime is 139634279. The reversal of 139634272 is 272436931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139634279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2181754 + ... + 2181817.

It is an arithmetic number, because the mean of its divisors is an integer number (22908753).

Almost surely, 2^139634272 is an apocalyptic number.

It is an amenable number.

139634272 is a deficient number, since it is larger than the sum of its proper divisors (135270764).

139634272 is an equidigital number, since it uses as much as digits as its factorization.

139634272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4363581 (or 4363573 counting only the distinct ones).

The product of its digits is 54432, while the sum is 37.

The square root of 139634272 is about 11816.6946309025. The cubic root of 139634272 is about 518.7968633910.

The spelling of 139634272 in words is "one hundred thirty-nine million, six hundred thirty-four thousand, two hundred seventy-two".