1140501231 has 6 divisors (see below), whose sum is σ = 1647390680. Its totient is φ = 760334148.

The previous prime is 1140501227. The next prime is 1140501251. The reversal of 1140501231 is 1321050411.

1140501231 is a `hidden beast` number, since 1 + 140 + 501 + 23 + 1 = 666.

It is not a de Polignac number, because 1140501231 - 2² = 1140501227 is a prime.

It is a super-2 number, since 2×1140501231² = 2601486115825030722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140501221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63361171 + ... + 63361188.

Almost surely, 2^1140501231 is an apocalyptic number.

1140501231 is a deficient number, since it is larger than the sum of its proper divisors (506889449).

1140501231 is a wasteful number, since it uses less digits than its factorization.

1140501231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126722365 (or 126722362 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1140501231 is about 33771.3078070720. The cubic root of 1140501231 is about 1044.7970061204.

Adding to 1140501231 its reverse (1321050411), we get a palindrome (2461551642).

The spelling of 1140501231 in words is "one billion, one hundred forty million, five hundred one thousand, two hundred thirty-one".