139338386 has 16 divisors (see below), whose sum is σ = 228523680. Its totient is φ = 63192480.

The previous prime is 139338373. The next prime is 139338391. The reversal of 139338386 is 683833931.

139338386 = 1758² + 1759² + ... + 1801².

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3125 + ... + 16983.

It is an arithmetic number, because the mean of its divisors is an integer number (14282730).

Almost surely, 2^139338386 is an apocalyptic number.

139338386 is a deficient number, since it is larger than the sum of its proper divisors (89185294).

139338386 is a wasteful number, since it uses less digits than its factorization.

139338386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14329.

The product of its digits is 279936, while the sum is 44.

The square root of 139338386 is about 11804.1681621366. The cubic root of 139338386 is about 518.4301595243.

The spelling of 139338386 in words is "one hundred thirty-nine million, three hundred thirty-eight thousand, three hundred eighty-six".