115920151 has 2 divisors, whose sum is σ = 115920152. Its totient is φ = 115920150.

The previous prime is 115920137. The next prime is 115920157. The reversal of 115920151 is 151029511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115920151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115920157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57960075 + 57960076.

It is an arithmetic number, because the mean of its divisors is an integer number (57960076).

Almost surely, 2^115920151 is an apocalyptic number.

115920151 is a deficient number, since it is larger than the sum of its proper divisors (1).

115920151 is an equidigital number, since it uses as much as digits as its factorization.

115920151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 25.

The square root of 115920151 is about 10766.6220793710. The cubic root of 115920151 is about 487.5879671194.

Adding to 115920151 its reverse (151029511), we get a palindrome (266949662).

The spelling of 115920151 in words is "one hundred fifteen million, nine hundred twenty thousand, one hundred fifty-one".