139702244 has 36 divisors (see below), whose sum is σ = 277423104. Its totient is φ = 61446000.

The previous prime is 139702201. The next prime is 139702249. The reversal of 139702244 is 442207931.

It is a self number, because there is not a number n which added to its sum of digits gives 139702244.

It is not an unprimeable number, because it can be changed into a prime (139702249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10349 + ... + 19659.

Almost surely, 2^139702244 is an apocalyptic number.

It is an amenable number.

139702244 is a deficient number, since it is larger than the sum of its proper divisors (137720860).

139702244 is a wasteful number, since it uses less digits than its factorization.

139702244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9368 (or 9355 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 139702244 is about 11819.5703813633. The cubic root of 139702244 is about 518.8810307411.

The spelling of 139702244 in words is "one hundred thirty-nine million, seven hundred two thousand, two hundred forty-four".