115158881 has 2 divisors, whose sum is σ = 115158882. Its totient is φ = 115158880.

The previous prime is 115158839. The next prime is 115158889. The reversal of 115158881 is 188851511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93219025 + 21939856 = 9655^2 + 4684^2 .

It is a cyclic number.

It is not a de Polignac number, because 115158881 - 2⁶ = 115158817 is a prime.

It is a super-3 number, since 3×115158881³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (115158889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57579440 + 57579441.

It is an arithmetic number, because the mean of its divisors is an integer number (57579441).

Almost surely, 2^115158881 is an apocalyptic number.

It is an amenable number.

115158881 is a deficient number, since it is larger than the sum of its proper divisors (1).

115158881 is an equidigital number, since it uses as much as digits as its factorization.

115158881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12800, while the sum is 38.

The square root of 115158881 is about 10731.2106027233. The cubic root of 115158881 is about 486.5182606122.

The spelling of 115158881 in words is "one hundred fifteen million, one hundred fifty-eight thousand, eight hundred eighty-one".