115545533 has 2 divisors, whose sum is σ = 115545534. Its totient is φ = 115545532.

The previous prime is 115545511. The next prime is 115545539. The reversal of 115545533 is 335545511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115498009 + 47524 = 10747^2 + 218^2 .

It is a cyclic number.

It is not a de Polignac number, because 115545533 - 2²⁶ = 48436669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115545533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115545539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57772766 + 57772767.

It is an arithmetic number, because the mean of its divisors is an integer number (57772767).

Almost surely, 2^115545533 is an apocalyptic number.

It is an amenable number.

115545533 is a deficient number, since it is larger than the sum of its proper divisors (1).

115545533 is an equidigital number, since it uses as much as digits as its factorization.

115545533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22500, while the sum is 32.

The square root of 115545533 is about 10749.2108082408. The cubic root of 115545533 is about 487.0621558964.

The spelling of 115545533 in words is "one hundred fifteen million, five hundred forty-five thousand, five hundred thirty-three".