1153545613 has 16 divisors (see below), whose sum is σ = 1326896640. Its totient is φ = 991796400.

The previous prime is 1153545607. The next prime is 1153545623. The reversal of 1153545613 is 3165453511.

It is a cyclic number.

It is not a de Polignac number, because 1153545613 - 2²⁹ = 616674701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153545623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127506 + ... + 136252.

It is an arithmetic number, because the mean of its divisors is an integer number (82931040).

Almost surely, 2^1153545613 is an apocalyptic number.

It is an amenable number.

1153545613 is a deficient number, since it is larger than the sum of its proper divisors (173351027).

1153545613 is a wasteful number, since it uses less digits than its factorization.

1153545613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9408.

The product of its digits is 27000, while the sum is 34.

The square root of 1153545613 is about 33963.8868947593. The cubic root of 1153545613 is about 1048.7651736281.

The spelling of 1153545613 in words is "one billion, one hundred fifty-three million, five hundred forty-five thousand, six hundred thirteen".