139061008 has 10 divisors (see below), whose sum is σ = 269430734. Its totient is φ = 69530496.

The previous prime is 139060949. The next prime is 139061017. The reversal of 139061008 is 800160931.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 84419344 + 54641664 = 9188^2 + 7392^2 .

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, 4345641 + ... + 4345672.

Almost surely, 2^139061008 is an apocalyptic number.

It is an amenable number.

139061008 is a deficient number, since it is larger than the sum of its proper divisors (130369726).

139061008 is an equidigital number, since it uses as much as digits as its factorization.

139061008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8691321 (or 8691315 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 139061008 is about 11792.4131542276. The cubic root of 139061008 is about 518.0859216556.

The spelling of 139061008 in words is "one hundred thirty-nine million, sixty-one thousand, eight".