115542561535 has 4 divisors (see below), whose sum is σ = 138651073848. Its totient is φ = 92434049224.

The previous prime is 115542561509. The next prime is 115542561583. The reversal of 115542561535 is 535165245511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115542561535 - 2⁹ = 115542561023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115542561491 and 115542561500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11554256149 + ... + 11554256158.

It is an arithmetic number, because the mean of its divisors is an integer number (34662768462).

Almost surely, 2^115542561535 is an apocalyptic number.

115542561535 is a deficient number, since it is larger than the sum of its proper divisors (23108512313).

115542561535 is an equidigital number, since it uses as much as digits as its factorization.

115542561535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23108512312.

The product of its digits is 450000, while the sum is 43.

The spelling of 115542561535 in words is "one hundred fifteen billion, five hundred forty-two million, five hundred sixty-one thousand, five hundred thirty-five".