1154541155 has 32 divisors (see below), whose sum is σ = 1451831040. Its totient is φ = 880588800.

The previous prime is 1154541131. The next prime is 1154541163. The reversal of 1154541155 is 5511454511.

It is not a de Polignac number, because 1154541155 - 2²² = 1150346851 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2878955 + ... + 2879355.

It is an arithmetic number, because the mean of its divisors is an integer number (45369720).

Almost surely, 2^1154541155 is an apocalyptic number.

1154541155 is a deficient number, since it is larger than the sum of its proper divisors (297289885).

1154541155 is a wasteful number, since it uses less digits than its factorization.

1154541155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719.

The product of its digits is 10000, while the sum is 32.

The square root of 1154541155 is about 33978.5396242982. The cubic root of 1154541155 is about 1049.0667913972.

Adding to 1154541155 its reverse (5511454511), we get a palindrome (6665995666).

The spelling of 1154541155 in words is "one billion, one hundred fifty-four million, five hundred forty-one thousand, one hundred fifty-five".