115315400573 has 2 divisors, whose sum is σ = 115315400574. Its totient is φ = 115315400572.

The previous prime is 115315400549. The next prime is 115315400579. The reversal of 115315400573 is 375004513511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63195423769 + 52119976804 = 251387^2 + 228298^2 .

It is an emirp because it is prime and its reverse (375004513511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115315400573 - 2²⁴ = 115298623357 is a prime.

It is a super-2 number, since 2×115315400573² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115315400579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57657700286 + 57657700287.

It is an arithmetic number, because the mean of its divisors is an integer number (57657700287).

Almost surely, 2^115315400573 is an apocalyptic number.

It is an amenable number.

115315400573 is a deficient number, since it is larger than the sum of its proper divisors (1).

115315400573 is an equidigital number, since it uses as much as digits as its factorization.

115315400573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 35.

The spelling of 115315400573 in words is "one hundred fifteen billion, three hundred fifteen million, four hundred thousand, five hundred seventy-three".