1152156155 has 4 divisors (see below), whose sum is σ = 1382587392. Its totient is φ = 921724920.

The previous prime is 1152156107. The next prime is 1152156191. The reversal of 1152156155 is 5516512511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5516512511 = 97 ⋅56871263.

It is not a de Polignac number, because 1152156155 - 2⁸ = 1152155899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115215611 + ... + 115215620.

It is an arithmetic number, because the mean of its divisors is an integer number (345646848).

Almost surely, 2^1152156155 is an apocalyptic number.

1152156155 is a deficient number, since it is larger than the sum of its proper divisors (230431237).

1152156155 is an equidigital number, since it uses as much as digits as its factorization.

1152156155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230431236.

The product of its digits is 7500, while the sum is 32.

The square root of 1152156155 is about 33943.4257994092. The cubic root of 1152156155 is about 1048.3439215010.

Adding to 1152156155 its reverse (5516512511), we get a palindrome (6668668666).

It can be divided in two parts, 11521 and 56155, that added together give a palindrome (67676).

The spelling of 1152156155 in words is "one billion, one hundred fifty-two million, one hundred fifty-six thousand, one hundred fifty-five".