115127531 has 2 divisors, whose sum is σ = 115127532. Its totient is φ = 115127530.

The previous prime is 115127527. The next prime is 115127543. The reversal of 115127531 is 135721511.

It is a weak prime.

It is an emirp because it is prime and its reverse (135721511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115127531 - 2² = 115127527 is a prime.

It is a super-2 number, since 2×115127531² = 26508696788311922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115127531.

It is not a weakly prime, because it can be changed into another prime (115127731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57563765 + 57563766.

It is an arithmetic number, because the mean of its divisors is an integer number (57563766).

Almost surely, 2^115127531 is an apocalyptic number.

115127531 is a deficient number, since it is larger than the sum of its proper divisors (1).

115127531 is an equidigital number, since it uses as much as digits as its factorization.

115127531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1050, while the sum is 26.

The square root of 115127531 is about 10729.7498106899. The cubic root of 115127531 is about 486.4741078972.

It can be divided in two parts, 1151 and 27531, that added together give a palindrome (28682).

The spelling of 115127531 in words is "one hundred fifteen million, one hundred twenty-seven thousand, five hundred thirty-one".