139716423 has 24 divisors (see below), whose sum is σ = 251611776. Its totient is φ = 72579600.

The previous prime is 139716419. The next prime is 139716449. The reversal of 139716423 is 324617931.

139716423 is a `hidden beast` number, since 1 + 3 + 9 + 7 + 1 + 642 + 3 = 666.

It is not a de Polignac number, because 139716423 - 2² = 139716419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139716023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100113 + ... + 101498.

It is an arithmetic number, because the mean of its divisors is an integer number (10483824).

Almost surely, 2^139716423 is an apocalyptic number.

139716423 is a deficient number, since it is larger than the sum of its proper divisors (111895353).

139716423 is a wasteful number, since it uses less digits than its factorization.

139716423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201635 (or 201632 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 139716423 is about 11820.1701764399. The cubic root of 139716423 is about 518.8985846592.

The spelling of 139716423 in words is "one hundred thirty-nine million, seven hundred sixteen thousand, four hundred twenty-three".