118713391 has 2 divisors, whose sum is σ = 118713392. Its totient is φ = 118713390.

The previous prime is 118713383. The next prime is 118713421. The reversal of 118713391 is 193317811.

It is a weak prime.

It is an emirp because it is prime and its reverse (193317811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118713391 - 2³ = 118713383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118714391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59356695 + 59356696.

It is an arithmetic number, because the mean of its divisors is an integer number (59356696).

Almost surely, 2^118713391 is an apocalyptic number.

118713391 is a deficient number, since it is larger than the sum of its proper divisors (1).

118713391 is an equidigital number, since it uses as much as digits as its factorization.

118713391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 34.

The square root of 118713391 is about 10895.5674932516. The cubic root of 118713391 is about 491.4732710353.

The spelling of 118713391 in words is "one hundred eighteen million, seven hundred thirteen thousand, three hundred ninety-one".