1152661131 has 16 divisors (see below), whose sum is σ = 1709316000. Its totient is φ = 767689344.

The previous prime is 1152661129. The next prime is 1152661151. The reversal of 1152661131 is 1311662511.

1152661131 is a `hidden beast` number, since 1 + 1 + 526 + 6 + 1 + 131 = 666.

It is not a de Polignac number, because 1152661131 - 2¹ = 1152661129 is a prime.

It is a super-2 number, since 2×1152661131² = 2657255365836398322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1152661095 and 1152661104.

It is not an unprimeable number, because it can be changed into a prime (1152661151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7975 + ... + 48671.

It is an arithmetic number, because the mean of its divisors is an integer number (106832250).

Almost surely, 2^1152661131 is an apocalyptic number.

1152661131 is a deficient number, since it is larger than the sum of its proper divisors (556654869).

1152661131 is a wasteful number, since it uses less digits than its factorization.

1152661131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41755 (or 41749 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 1152661131 is about 33950.8634794463. The cubic root of 1152661131 is about 1048.4970579184.

The spelling of 1152661131 in words is "one billion, one hundred fifty-two million, six hundred sixty-one thousand, one hundred thirty-one".