139987174 has 16 divisors (see below), whose sum is σ = 223066800. Its totient is φ = 65699424.

The previous prime is 139987157. The next prime is 139987181. The reversal of 139987174 is 471789931.

It is a congruent number.

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, 12757 + ... + 21040.

It is an arithmetic number, because the mean of its divisors is an integer number (13941675).

Almost surely, 2^139987174 is an apocalyptic number.

139987174 is a deficient number, since it is larger than the sum of its proper divisors (83079626).

139987174 is a wasteful number, since it uses less digits than its factorization.

139987174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33927.

The product of its digits is 381024, while the sum is 49.

The square root of 139987174 is about 11831.6175563614. The cubic root of 139987174 is about 519.2335528129.

The spelling of 139987174 in words is "one hundred thirty-nine million, nine hundred eighty-seven thousand, one hundred seventy-four".