1097575681 has 2 divisors, whose sum is σ = 1097575682. Its totient is φ = 1097575680.

The previous prime is 1097575669. The next prime is 1097575691. The reversal of 1097575681 is 1865757901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 720439281 + 377136400 = 26841^2 + 19420^2 .

It is a cyclic number.

It is not a de Polignac number, because 1097575681 - 2¹³ = 1097567489 is a prime.

It is a super-2 number, since 2×1097575681² = 2409344751045227522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1097575601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548787840 + 548787841.

It is an arithmetic number, because the mean of its divisors is an integer number (548787841).

Almost surely, 2^1097575681 is an apocalyptic number.

It is an amenable number.

1097575681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097575681 is an equidigital number, since it uses as much as digits as its factorization.

1097575681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529200, while the sum is 49.

The square root of 1097575681 is about 33129.6797599977. The cubic root of 1097575681 is about 1031.5212011989.

The spelling of 1097575681 in words is "one billion, ninety-seven million, five hundred seventy-five thousand, six hundred eighty-one".