1151589431 has 2 divisors, whose sum is σ = 1151589432. Its totient is φ = 1151589430.

The previous prime is 1151589409. The next prime is 1151589451. The reversal of 1151589431 is 1349851511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1151589431 is a prime.

It is a super-2 number, since 2×1151589431² = 2652316435181807522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151589451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575794715 + 575794716.

It is an arithmetic number, because the mean of its divisors is an integer number (575794716).

Almost surely, 2^1151589431 is an apocalyptic number.

1151589431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151589431 is an equidigital number, since it uses as much as digits as its factorization.

1151589431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 38.

The square root of 1151589431 is about 33935.0767053796. The cubic root of 1151589431 is about 1048.1720064074.

The spelling of 1151589431 in words is "one billion, one hundred fifty-one million, five hundred eighty-nine thousand, four hundred thirty-one".