139764339 has 64 divisors (see below), whose sum is σ = 248209920. Its totient is φ = 76602240.

The previous prime is 139764301. The next prime is 139764341. The reversal of 139764339 is 933467931.

It is a happy number.

It is not a de Polignac number, because 139764339 - 2¹⁷ = 139633267 is a prime.

It is a super-2 number, since 2×139764339² = 39068140912213842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139764294 and 139764303.

It is not an unprimeable number, because it can be changed into a prime (139764239) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 204292 + ... + 204974.

It is an arithmetic number, because the mean of its divisors is an integer number (3878280).

Almost surely, 2^139764339 is an apocalyptic number.

139764339 is a deficient number, since it is larger than the sum of its proper divisors (108445581).

139764339 is a wasteful number, since it uses less digits than its factorization.

139764339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 763 counting only the distinct ones).

The product of its digits is 367416, while the sum is 45.

The square root of 139764339 is about 11822.1968770614. The cubic root of 139764339 is about 518.9578969487.

The spelling of 139764339 in words is "one hundred thirty-nine million, seven hundred sixty-four thousand, three hundred thirty-nine".