1097043631 has 2 divisors, whose sum is σ = 1097043632. Its totient is φ = 1097043630.

The previous prime is 1097043617. The next prime is 1097043707. The reversal of 1097043631 is 1363407901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1097043631 - 2²³ = 1088655023 is a prime.

It is a super-2 number, since 2×1097043631² = 2407009456635328322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1097044631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548521815 + 548521816.

It is an arithmetic number, because the mean of its divisors is an integer number (548521816).

Almost surely, 2^1097043631 is an apocalyptic number.

1097043631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097043631 is an equidigital number, since it uses as much as digits as its factorization.

1097043631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 1097043631 is about 33121.6489776702. The cubic root of 1097043631 is about 1031.3544975663.

The spelling of 1097043631 in words is "one billion, ninety-seven million, forty-three thousand, six hundred thirty-one".