139315886 has 8 divisors (see below), whose sum is σ = 209073960. Its totient is φ = 69624568.

The previous prime is 139315861. The next prime is 139315903. The reversal of 139315886 is 688513931.

139315886 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11096 + ... + 20043.

It is an arithmetic number, because the mean of its divisors is an integer number (26134245).

Almost surely, 2^139315886 is an apocalyptic number.

139315886 is a deficient number, since it is larger than the sum of its proper divisors (69758074).

139315886 is a wasteful number, since it uses less digits than its factorization.

139315886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33378.

The product of its digits is 155520, while the sum is 44.

The square root of 139315886 is about 11803.2150704797. The cubic root of 139315886 is about 518.4022531044.

The spelling of 139315886 in words is "one hundred thirty-nine million, three hundred fifteen thousand, eight hundred eighty-six".