115154445881 has 2 divisors, whose sum is σ = 115154445882. Its totient is φ = 115154445880.

The previous prime is 115154445863. The next prime is 115154445907. The reversal of 115154445881 is 188544451511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115152314281 + 2131600 = 339341^2 + 1460^2 .

It is a cyclic number.

It is not a de Polignac number, because 115154445881 - 2³⁰ = 114080704057 is a prime.

It is a super-2 number, since 2×115154445881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115154445841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57577222940 + 57577222941.

It is an arithmetic number, because the mean of its divisors is an integer number (57577222941).

Almost surely, 2^115154445881 is an apocalyptic number.

It is an amenable number.

115154445881 is a deficient number, since it is larger than the sum of its proper divisors (1).

115154445881 is an equidigital number, since it uses as much as digits as its factorization.

115154445881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512000, while the sum is 47.

The spelling of 115154445881 in words is "one hundred fifteen billion, one hundred fifty-four million, four hundred forty-five thousand, eight hundred eighty-one".