1097260999 has 2 divisors, whose sum is σ = 1097261000. Its totient is φ = 1097260998.

The previous prime is 1097260949. The next prime is 1097261059. The reversal of 1097260999 is 9990627901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1097260999 - 2²⁷ = 963043271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1097260949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548630499 + 548630500.

It is an arithmetic number, because the mean of its divisors is an integer number (548630500).

Almost surely, 2^1097260999 is an apocalyptic number.

1097260999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097260999 is an equidigital number, since it uses as much as digits as its factorization.

1097260999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 551124, while the sum is 52.

The square root of 1097260999 is about 33124.9301735113. The cubic root of 1097260999 is about 1031.4226105241.

The spelling of 1097260999 in words is "one billion, ninety-seven million, two hundred sixty thousand, nine hundred ninety-nine".