1097450831 has 2 divisors, whose sum is σ = 1097450832. Its totient is φ = 1097450830.

The previous prime is 1097450803. The next prime is 1097450863. The reversal of 1097450831 is 1380547901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1097450831 - 2¹⁴ = 1097434447 is a prime.

It is a super-2 number, since 2×1097450831² = 2408796652925181122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1097450131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548725415 + 548725416.

It is an arithmetic number, because the mean of its divisors is an integer number (548725416).

Almost surely, 2^1097450831 is an apocalyptic number.

1097450831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097450831 is an equidigital number, since it uses as much as digits as its factorization.

1097450831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1097450831 is about 33127.7954443093. The cubic root of 1097450831 is about 1031.4820876302.

The spelling of 1097450831 in words is "one billion, ninety-seven million, four hundred fifty thousand, eight hundred thirty-one".