139309168 has 10 divisors (see below), whose sum is σ = 269911544. Its totient is φ = 69654576.

The previous prime is 139309099. The next prime is 139309201. The reversal of 139309168 is 861903931.

It is a self number, because there is not a number n which added to its sum of digits gives 139309168.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4353396 + ... + 4353427.

Almost surely, 2^139309168 is an apocalyptic number.

It is an amenable number.

139309168 is a deficient number, since it is larger than the sum of its proper divisors (130602376).

139309168 is an equidigital number, since it uses as much as digits as its factorization.

139309168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8706831 (or 8706825 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 139309168 is about 11802.9304835706. The cubic root of 139309168 is about 518.3939202851.

The spelling of 139309168 in words is "one hundred thirty-nine million, three hundred nine thousand, one hundred sixty-eight".