139070685 has 16 divisors (see below), whose sum is σ = 239629824. Its totient is φ = 68465472.

The previous prime is 139070677. The next prime is 139070699. The reversal of 139070685 is 586070931.

It is not a de Polignac number, because 139070685 - 2³ = 139070677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent 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, 356397 + ... + 356786.

It is an arithmetic number, because the mean of its divisors is an integer number (14976864).

Almost surely, 2^139070685 is an apocalyptic number.

139070685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139070685 is a deficient number, since it is larger than the sum of its proper divisors (100559139).

139070685 is a wasteful number, since it uses less digits than its factorization.

139070685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713204.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 139070685 is about 11792.8234532702. The cubic root of 139070685 is about 518.0979389259.

The spelling of 139070685 in words is "one hundred thirty-nine million, seventy thousand, six hundred eighty-five".