1140463531 has 4 divisors (see below), whose sum is σ = 1144356192. Its totient is φ = 1136570872.

The previous prime is 1140463529. The next prime is 1140463537. The reversal of 1140463531 is 1353640411.

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

It is a cyclic number.

It is not a de Polignac number, because 1140463531 - 2¹ = 1140463529 is a prime.

It is a super-2 number, since 2×1140463531² = 2601314131081975922, 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 1140463531.

It is not an unprimeable number, because it can be changed into a prime (1140463537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1945891 + ... + 1946476.

It is an arithmetic number, because the mean of its divisors is an integer number (286089048).

Almost surely, 2^1140463531 is an apocalyptic number.

1140463531 is a deficient number, since it is larger than the sum of its proper divisors (3892661).

1140463531 is an equidigital number, since it uses as much as digits as its factorization.

1140463531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3892660.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1140463531 is about 33770.7496363347. The cubic root of 1140463531 is about 1044.7854938484.

The spelling of 1140463531 in words is "one billion, one hundred forty million, four hundred sixty-three thousand, five hundred thirty-one".