115918141 has 2 divisors, whose sum is σ = 115918142. Its totient is φ = 115918140.

The previous prime is 115918123. The next prime is 115918147. The reversal of 115918141 is 141819511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109935225 + 5982916 = 10485^2 + 2446^2 .

It is an emirp because it is prime and its reverse (141819511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115918141 - 2²¹ = 113820989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115918147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57959070 + 57959071.

It is an arithmetic number, because the mean of its divisors is an integer number (57959071).

Almost surely, 2^115918141 is an apocalyptic number.

It is an amenable number.

115918141 is a deficient number, since it is larger than the sum of its proper divisors (1).

115918141 is an equidigital number, since it uses as much as digits as its factorization.

115918141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 31.

The square root of 115918141 is about 10766.5287349266. The cubic root of 115918141 is about 487.5851489224.

The spelling of 115918141 in words is "one hundred fifteen million, nine hundred eighteen thousand, one hundred forty-one".