139708770 has 32 divisors (see below), whose sum is σ = 335620800. Its totient is φ = 37220160.

The previous prime is 139708733. The next prime is 139708813. The reversal of 139708770 is 77807931.

It is a happy number.

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, 49600 + ... + 52340.

It is an arithmetic number, because the mean of its divisors is an integer number (10488150).

Almost surely, 2^139708770 is an apocalyptic number.

139708770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139708770 is an abundant number, since it is smaller than the sum of its proper divisors (195912030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139708770 is a wasteful number, since it uses less digits than its factorization.

139708770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4450.

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 139708770 is about 11819.8464457031. The cubic root of 139708770 is about 518.8891102222.

The spelling of 139708770 in words is "one hundred thirty-nine million, seven hundred eight thousand, seven hundred seventy".