1154255155 has 8 divisors (see below), whose sum is σ = 1385291952. Its totient is φ = 923280288.

The previous prime is 1154255153. The next prime is 1154255191. The reversal of 1154255155 is 5515524511.

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

It is a cyclic number.

It is not a de Polignac number, because 1154255155 - 2¹ = 1154255153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1154255155.

It is not an unprimeable number, because it can be changed into a prime (1154255153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53364 + ... + 71806.

It is an arithmetic number, because the mean of its divisors is an integer number (173161494).

Almost surely, 2^1154255155 is an apocalyptic number.

1154255155 is a deficient number, since it is larger than the sum of its proper divisors (231036797).

1154255155 is a wasteful number, since it uses less digits than its factorization.

1154255155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30965.

The product of its digits is 25000, while the sum is 34.

The square root of 1154255155 is about 33974.3308249037. The cubic root of 1154255155 is about 1048.9801601905.

Adding to 1154255155 its reverse (5515524511), we get a palindrome (6669779666).

The spelling of 1154255155 in words is "one billion, one hundred fifty-four million, two hundred fifty-five thousand, one hundred fifty-five".