1097842481 has 2 divisors, whose sum is σ = 1097842482. Its totient is φ = 1097842480.

The previous prime is 1097842453. The next prime is 1097842511. The reversal of 1097842481 is 1842487901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1014741025 + 83101456 = 31855^2 + 9116^2 .

It is a cyclic number.

It is not a de Polignac number, because 1097842481 - 2¹⁰ = 1097841457 is a prime.

It is a super-2 number, since 2×1097842481² = 2410516226176470722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1097842451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548921240 + 548921241.

It is an arithmetic number, because the mean of its divisors is an integer number (548921241).

Almost surely, 2^1097842481 is an apocalyptic number.

It is an amenable number.

1097842481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097842481 is an equidigital number, since it uses as much as digits as its factorization.

1097842481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 1097842481 is about 33133.7061162798. The cubic root of 1097842481 is about 1031.6047755604.

The spelling of 1097842481 in words is "one billion, ninety-seven million, eight hundred forty-two thousand, four hundred eighty-one".