1097970571 has 2 divisors, whose sum is σ = 1097970572. Its totient is φ = 1097970570.

The previous prime is 1097970569. The next prime is 1097970583. The reversal of 1097970571 is 1750797901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1097970571 - 2¹ = 1097970569 is a prime.

Together with 1097970569, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1097970521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548985285 + 548985286.

It is an arithmetic number, because the mean of its divisors is an integer number (548985286).

Almost surely, 2^1097970571 is an apocalyptic number.

1097970571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097970571 is an equidigital number, since it uses as much as digits as its factorization.

1097970571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138915, while the sum is 46.

The square root of 1097970571 is about 33135.6389858412. The cubic root of 1097970571 is about 1031.6448945875.

The spelling of 1097970571 in words is "one billion, ninety-seven million, nine hundred seventy thousand, five hundred seventy-one".