139716911 has 4 divisors (see below), whose sum is σ = 140332632. Its totient is φ = 139101192.

The previous prime is 139716893. The next prime is 139716919. The reversal of 139716911 is 119617931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119617931 = 809 ⋅147859.

It is a cyclic number.

It is not a de Polignac number, because 139716911 - 2²⁶ = 72608047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139716919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307520 + ... + 307973.

It is an arithmetic number, because the mean of its divisors is an integer number (35083158).

Almost surely, 2^139716911 is an apocalyptic number.

139716911 is a deficient number, since it is larger than the sum of its proper divisors (615721).

139716911 is an equidigital number, since it uses as much as digits as its factorization.

139716911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615720.

The product of its digits is 10206, while the sum is 38.

The square root of 139716911 is about 11820.1908191027. The cubic root of 139716911 is about 518.8991887930.

The spelling of 139716911 in words is "one hundred thirty-nine million, seven hundred sixteen thousand, nine hundred eleven".