18601097 has 2 divisors, whose sum is σ = 18601098. Its totient is φ = 18601096.

The previous prime is 18601067. The next prime is 18601109. The reversal of 18601097 is 79010681.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11316496 + 7284601 = 3364^2 + 2699^2 .

It is a cyclic number.

It is not a de Polignac number, because 18601097 - 2¹⁰ = 18600073 is a prime.

It is not a weakly prime, because it can be changed into another prime (18601027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9300548 + 9300549.

It is an arithmetic number, because the mean of its divisors is an integer number (9300549).

Almost surely, 2^18601097 is an apocalyptic number.

It is an amenable number.

18601097 is a deficient number, since it is larger than the sum of its proper divisors (1).

18601097 is an equidigital number, since it uses as much as digits as its factorization.

18601097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 18601097 is about 4312.8989090866. The cubic root of 18601097 is about 264.9595144037.

The spelling of 18601097 in words is "eighteen million, six hundred one thousand, ninety-seven".