18223097 has 2 divisors, whose sum is σ = 18223098. Its totient is φ = 18223096.

The previous prime is 18223087. The next prime is 18223141. The reversal of 18223097 is 79032281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18113536 + 109561 = 4256^2 + 331^2 .

It is a cyclic number.

It is not a de Polignac number, because 18223097 - 2⁴ = 18223081 is a prime.

It is not a weakly prime, because it can be changed into another prime (18223057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9111548 + 9111549.

It is an arithmetic number, because the mean of its divisors is an integer number (9111549).

Almost surely, 2^18223097 is an apocalyptic number.

It is an amenable number.

18223097 is a deficient number, since it is larger than the sum of its proper divisors (1).

18223097 is an equidigital number, since it uses as much as digits as its factorization.

18223097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 18223097 is about 4268.8519533945. The cubic root of 18223097 is about 263.1524366047.

The spelling of 18223097 in words is "eighteen million, two hundred twenty-three thousand, ninety-seven".