139813175056 has 15 divisors (see below), whose sum is σ = 270890924551. Its totient is φ = 69905839696.

The previous prime is 139813175053. The next prime is 139813175087. The reversal of 139813175056 is 650571318931.

It is a happy number.

The square root of 139813175056 is 373916.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139813175053) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1448925 + ... + 1542403.

Almost surely, 2^139813175056 is an apocalyptic number.

139813175056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

139813175056 is the 373916-th square number.

It is an amenable number.

139813175056 is a deficient number, since it is larger than the sum of its proper divisors (131077749495).

139813175056 is an frugal number, since it uses more digits than its factorization.

139813175056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186966 (or 93481 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 49.

Multiplying 139813175056 by its sum of digits (49), we get a square (6850845577744 = 2617412²).

The spelling of 139813175056 in words is "one hundred thirty-nine billion, eight hundred thirteen million, one hundred seventy-five thousand, fifty-six".