139110791 has 2 divisors, whose sum is σ = 139110792. Its totient is φ = 139110790.

The previous prime is 139110773. The next prime is 139110793. The reversal of 139110791 is 197011931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139110791 - 2²² = 134916487 is a prime.

It is a Sophie Germain prime.

Together with 139110793, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139110793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69555395 + 69555396.

It is an arithmetic number, because the mean of its divisors is an integer number (69555396).

Almost surely, 2^139110791 is an apocalyptic number.

139110791 is a deficient number, since it is larger than the sum of its proper divisors (1).

139110791 is an equidigital number, since it uses as much as digits as its factorization.

139110791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 32.

The square root of 139110791 is about 11794.5237716493. The cubic root of 139110791 is about 518.1477381552.

The spelling of 139110791 in words is "one hundred thirty-nine million, one hundred ten thousand, seven hundred ninety-one".