139077770 has 32 divisors (see below), whose sum is σ = 270179280. Its totient is φ = 51240960.

The previous prime is 139077751. The next prime is 139077791. The reversal of 139077770 is 77770931.

139077770 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 67387681 + 71690089 = 8209^2 + 8467^2 .

It is a super-2 number, since 2×139077770² = 38685252216345800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82496 + ... + 84164.

Almost surely, 2^139077770 is an apocalyptic number.

139077770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139077770 is a deficient number, since it is larger than the sum of its proper divisors (131101510).

139077770 is a wasteful number, since it uses less digits than its factorization.

139077770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330.

The product of its (nonzero) digits is 64827, while the sum is 41.

The square root of 139077770 is about 11793.1238440033. The cubic root of 139077770 is about 518.1067369976.

The spelling of 139077770 in words is "one hundred thirty-nine million, seventy-seven thousand, seven hundred seventy".