139777552 has 10 divisors (see below), whose sum is σ = 270819038. Its totient is φ = 69888768.

The previous prime is 139777541. The next prime is 139777579. The reversal of 139777552 is 255777931.

It can be written as a sum of positive squares in only one way, i.e., 134189056 + 5588496 = 11584^2 + 2364^2 .

It is a super-2 number, since 2×139777552² = 39075528086225408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4368033 + ... + 4368064.

Almost surely, 2^139777552 is an apocalyptic number.

It is an amenable number.

139777552 is a deficient number, since it is larger than the sum of its proper divisors (131041486).

139777552 is an equidigital number, since it uses as much as digits as its factorization.

139777552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8736105 (or 8736099 counting only the distinct ones).

The product of its digits is 463050, while the sum is 46.

The square root of 139777552 is about 11822.7556855413. The cubic root of 139777552 is about 518.9742501298.

The spelling of 139777552 in words is "one hundred thirty-nine million, seven hundred seventy-seven thousand, five hundred fifty-two".