139792649 has 8 divisors (see below), whose sum is σ = 148232448. Its totient is φ = 131376960.

The previous prime is 139792621. The next prime is 139792651. The reversal of 139792649 is 946297931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139792649 - 2²⁴ = 123015433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139792597 and 139792606.

It is not an unprimeable number, because it can be changed into a prime (139792669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6704 + ... + 18014.

It is an arithmetic number, because the mean of its divisors is an integer number (18529056).

Almost surely, 2^139792649 is an apocalyptic number.

It is an amenable number.

139792649 is a deficient number, since it is larger than the sum of its proper divisors (8439799).

139792649 is a wasteful number, since it uses less digits than its factorization.

139792649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12055.

The product of its digits is 734832, while the sum is 50.

The square root of 139792649 is about 11823.3941404319. The cubic root of 139792649 is about 518.9929337980.

The spelling of 139792649 in words is "one hundred thirty-nine million, seven hundred ninety-two thousand, six hundred forty-nine".