118091651 has 2 divisors, whose sum is σ = 118091652. Its totient is φ = 118091650.

The previous prime is 118091647. The next prime is 118091681. The reversal of 118091651 is 156190811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118091651 - 2² = 118091647 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (118091621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59045825 + 59045826.

It is an arithmetic number, because the mean of its divisors is an integer number (59045826).

Almost surely, 2^118091651 is an apocalyptic number.

118091651 is a deficient number, since it is larger than the sum of its proper divisors (1).

118091651 is an equidigital number, since it uses as much as digits as its factorization.

118091651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 32.

The square root of 118091651 is about 10866.9982515872. The cubic root of 118091651 is about 490.6137678795.

The spelling of 118091651 in words is "one hundred eighteen million, ninety-one thousand, six hundred fifty-one".