1155131154 has 24 divisors (see below), whose sum is σ = 2504359260. Its totient is φ = 384801408.

The previous prime is 1155131149. The next prime is 1155131177. The reversal of 1155131154 is 4511315511.

It can be written as a sum of positive squares in 2 ways, for example, as 989417025 + 165714129 = 31455^2 + 12873^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10462 + ... + 49190.

Almost surely, 2^1155131154 is an apocalyptic number.

1155131154 is an abundant number, since it is smaller than the sum of its proper divisors (1349228106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155131154 is a wasteful number, since it uses less digits than its factorization.

1155131154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40394 (or 40391 counting only the distinct ones).

The product of its digits is 1500, while the sum is 27.

The square root of 1155131154 is about 33987.2204512225. The cubic root of 1155131154 is about 1049.2454606322.

Adding to 1155131154 its reverse (4511315511), we get a palindrome (5666446665).

The spelling of 1155131154 in words is "one billion, one hundred fifty-five million, one hundred thirty-one thousand, one hundred fifty-four".