1151411155 has 4 divisors (see below), whose sum is σ = 1381693392. Its totient is φ = 921128920.

The previous prime is 1151411113. The next prime is 1151411179. The reversal of 1151411155 is 5511141511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5511141511 = 547 ⋅10075213.

It is not a de Polignac number, because 1151411155 - 2⁹ = 1151410643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 115141111 + ... + 115141120.

It is an arithmetic number, because the mean of its divisors is an integer number (345423348).

Almost surely, 2^1151411155 is an apocalyptic number.

1151411155 is a deficient number, since it is larger than the sum of its proper divisors (230282237).

1151411155 is an equidigital number, since it uses as much as digits as its factorization.

1151411155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230282236.

The product of its digits is 500, while the sum is 25.

The square root of 1151411155 is about 33932.4498820819. The cubic root of 1151411155 is about 1048.1179149199.

Adding to 1151411155 its reverse (5511141511), we get a palindrome (6662552666).

The spelling of 1151411155 in words is "one billion, one hundred fifty-one million, four hundred eleven thousand, one hundred fifty-five".