139229976 has 32 divisors (see below), whose sum is σ = 348364800. Its totient is φ = 46371360.

The previous prime is 139229963. The next prime is 139230019. The reversal of 139229976 is 679922931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52441 + ... + 55031.

It is an arithmetic number, because the mean of its divisors is an integer number (10886400).

Almost surely, 2^139229976 is an apocalyptic number.

It is an amenable number.

139229976 is an abundant number, since it is smaller than the sum of its proper divisors (209134824).

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

139229976 is a wasteful number, since it uses less digits than its factorization.

139229976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4839 (or 4835 counting only the distinct ones).

The product of its digits is 367416, while the sum is 48.

The square root of 139229976 is about 11799.5752465926. The cubic root of 139229976 is about 518.2956725451.

The spelling of 139229976 in words is "one hundred thirty-nine million, two hundred twenty-nine thousand, nine hundred seventy-six".