1163045431 has 2 divisors, whose sum is σ = 1163045432. Its totient is φ = 1163045430.

The previous prime is 1163045341. The next prime is 1163045449. The reversal of 1163045431 is 1345403611.

Together with previous prime (1163045341) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1163045431 - 2²⁷ = 1028827703 is a prime.

It is a super-2 number, since 2×1163045431² = 2705349349139951522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1163045431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1163045491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581522715 + 581522716.

It is an arithmetic number, because the mean of its divisors is an integer number (581522716).

Almost surely, 2^1163045431 is an apocalyptic number.

1163045431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163045431 is an equidigital number, since it uses as much as digits as its factorization.

1163045431 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1163045431 is about 34103.4518927337. The cubic root of 1163045431 is about 1051.6362789965.

The spelling of 1163045431 in words is "one billion, one hundred sixty-three million, forty-five thousand, four hundred thirty-one".