1097081 has 2 divisors, whose sum is σ = 1097082. Its totient is φ = 1097080.

The previous prime is 1097069. The next prime is 1097101. The reversal of 1097081 is 1807901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 885481 + 211600 = 941^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 1097081 - 2⁶ = 1097017 is a prime.

It is a super-2 number, since 2×1097081² = 2407173441122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1097081.

It is not a weakly prime, because it can be changed into another prime (1097051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548540 + 548541.

It is an arithmetic number, because the mean of its divisors is an integer number (548541).

2^1097081 is an apocalyptic number.

It is an amenable number.

1097081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097081 is an equidigital number, since it uses as much as digits as its factorization.

1097081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 1097081 is about 1047.4163451083. The cubic root of 1097081 is about 103.1366207902.

The spelling of 1097081 in words is "one million, ninety-seven thousand, eighty-one".