1152611131 has 4 divisors (see below), whose sum is σ = 1317269872. Its totient is φ = 987952392.

The previous prime is 1152611113. The next prime is 1152611137. The reversal of 1152611131 is 1311162511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1152611131 - 2¹³ = 1152602939 is a prime.

It is a super-2 number, since 2×1152611131² = 2657024838610198322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152611137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82329360 + ... + 82329373.

It is an arithmetic number, because the mean of its divisors is an integer number (329317468).

Almost surely, 2^1152611131 is an apocalyptic number.

1152611131 is a deficient number, since it is larger than the sum of its proper divisors (164658741).

1152611131 is an equidigital number, since it uses as much as digits as its factorization.

1152611131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164658740.

The product of its digits is 180, while the sum is 22.

The square root of 1152611131 is about 33950.1271131641. The cubic root of 1152611131 is about 1048.4818971715.

Adding to 1152611131 its reverse (1311162511), we get a palindrome (2463773642).

The spelling of 1152611131 in words is "one billion, one hundred fifty-two million, six hundred eleven thousand, one hundred thirty-one".