1155305541 has 8 divisors (see below), whose sum is σ = 1658900320. Its totient is φ = 710957232.

The previous prime is 1155305537. The next prime is 1155305573. The reversal of 1155305541 is 1455035511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1155305541 - 2² = 1155305537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1155305499 and 1155305508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155305531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14811571 + ... + 14811648.

It is an arithmetic number, because the mean of its divisors is an integer number (207362540).

Almost surely, 2^1155305541 is an apocalyptic number.

It is an amenable number.

1155305541 is a deficient number, since it is larger than the sum of its proper divisors (503594779).

1155305541 is a wasteful number, since it uses less digits than its factorization.

1155305541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29623235.

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 1155305541 is about 33989.7858333941. The cubic root of 1155305541 is about 1049.2982585506.

The spelling of 1155305541 in words is "one billion, one hundred fifty-five million, three hundred five thousand, five hundred forty-one".