115515240433 has 2 divisors, whose sum is σ = 115515240434. Its totient is φ = 115515240432.

The previous prime is 115515240427. The next prime is 115515240493. The reversal of 115515240433 is 334042515511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82557379584 + 32957860849 = 287328^2 + 181543^2 .

It is a cyclic number.

It is not a de Polignac number, because 115515240433 - 2¹³ = 115515232241 is a prime.

It is not a weakly prime, because it can be changed into another prime (115515240403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57757620216 + 57757620217.

It is an arithmetic number, because the mean of its divisors is an integer number (57757620217).

Almost surely, 2^115515240433 is an apocalyptic number.

It is an amenable number.

115515240433 is a deficient number, since it is larger than the sum of its proper divisors (1).

115515240433 is an equidigital number, since it uses as much as digits as its factorization.

115515240433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 115515240433 its reverse (334042515511), we get a palindrome (449557755944).

The spelling of 115515240433 in words is "one hundred fifteen billion, five hundred fifteen million, two hundred forty thousand, four hundred thirty-three".