118148791 has 2 divisors, whose sum is σ = 118148792. Its totient is φ = 118148790.

The previous prime is 118148777. The next prime is 118148809. The reversal of 118148791 is 197841811.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118148791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118148711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59074395 + 59074396.

It is an arithmetic number, because the mean of its divisors is an integer number (59074396).

Almost surely, 2^118148791 is an apocalyptic number.

118148791 is a deficient number, since it is larger than the sum of its proper divisors (1).

118148791 is an equidigital number, since it uses as much as digits as its factorization.

118148791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 40.

The square root of 118148791 is about 10869.6269945201. The cubic root of 118148791 is about 490.6928848202.

The spelling of 118148791 in words is "one hundred eighteen million, one hundred forty-eight thousand, seven hundred ninety-one".