1140665131 has 8 divisors (see below), whose sum is σ = 1151390240. Its totient is φ = 1129984128.

The previous prime is 1140665129. The next prime is 1140665161. The reversal of 1140665131 is 1315660411.

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 1140665131 - 2¹ = 1140665129 is a prime.

It is a super-2 number, since 2×1140665131² = 2602233882158494322, which contains 22 as substring.

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 1140665131.

It is not an unprimeable number, because it can be changed into a prime (1140665101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42130 + ... + 63688.

It is an arithmetic number, because the mean of its divisors is an integer number (143923780).

Almost surely, 2^1140665131 is an apocalyptic number.

1140665131 is a deficient number, since it is larger than the sum of its proper divisors (10725109).

1140665131 is a wasteful number, since it uses less digits than its factorization.

1140665131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22053.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1140665131 is about 33773.7343360192. The cubic root of 1140665131 is about 1044.8470525451.

The spelling of 1140665131 in words is "one billion, one hundred forty million, six hundred sixty-five thousand, one hundred thirty-one".