115161493 has 2 divisors, whose sum is σ = 115161494. Its totient is φ = 115161492.

The previous prime is 115161491. The next prime is 115161521. The reversal of 115161493 is 394161511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95296644 + 19864849 = 9762^2 + 4457^2 .

It is a cyclic number.

It is not a de Polignac number, because 115161493 - 2¹ = 115161491 is a prime.

Together with 115161491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115161491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57580746 + 57580747.

It is an arithmetic number, because the mean of its divisors is an integer number (57580747).

Almost surely, 2^115161493 is an apocalyptic number.

It is an amenable number.

115161493 is a deficient number, since it is larger than the sum of its proper divisors (1).

115161493 is an equidigital number, since it uses as much as digits as its factorization.

115161493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 31.

The square root of 115161493 is about 10731.3323031206. The cubic root of 115161493 is about 486.5219389392.

The spelling of 115161493 in words is "one hundred fifteen million, one hundred sixty-one thousand, four hundred ninety-three".