139163626 has 12 divisors (see below), whose sum is σ = 242826498. Its totient is φ = 59641512.

The previous prime is 139163617. The next prime is 139163671. The reversal of 139163626 is 626361931.

It can be written as a sum of positive squares in only one way, i.e., 132273001 + 6890625 = 11501^2 + 2625^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 709921 + ... + 710116.

Almost surely, 2^139163626 is an apocalyptic number.

139163626 is a deficient number, since it is larger than the sum of its proper divisors (103662872).

139163626 is a wasteful number, since it uses less digits than its factorization.

139163626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420053 (or 1420046 counting only the distinct ones).

The product of its digits is 34992, while the sum is 37.

The square root of 139163626 is about 11796.7633696705. The cubic root of 139163626 is about 518.2133282517.

The spelling of 139163626 in words is "one hundred thirty-nine million, one hundred sixty-three thousand, six hundred twenty-six".