139432292 has 12 divisors (see below), whose sum is σ = 245285376. Its totient is φ = 69350760.

The previous prime is 139432289. The next prime is 139432297. The reversal of 139432292 is 292234931.

It is not an unprimeable number, because it can be changed into a prime (139432297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90488 + ... + 92015.

It is an arithmetic number, because the mean of its divisors is an integer number (20440448).

Almost surely, 2^139432292 is an apocalyptic number.

It is an amenable number.

139432292 is a deficient number, since it is larger than the sum of its proper divisors (105853084).

139432292 is a wasteful number, since it uses less digits than its factorization.

139432292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182698 (or 182696 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 139432292 is about 11808.1451549344. The cubic root of 139432292 is about 518.5465973353.

The spelling of 139432292 in words is "one hundred thirty-nine million, four hundred thirty-two thousand, two hundred ninety-two".