12198017 has 4 divisors (see below), whose sum is σ = 13136340. Its totient is φ = 11259696.

The previous prime is 12198007. The next prime is 12198023. The reversal of 12198017 is 71089121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2563201 + 9634816 = 1601^2 + 3104^2 .

It is a cyclic number.

It is not a de Polignac number, because 12198017 - 2⁴ = 12198001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12198007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469142 + ... + 469167.

It is an arithmetic number, because the mean of its divisors is an integer number (3284085).

Almost surely, 2^12198017 is an apocalyptic number.

It is an amenable number.

12198017 is a deficient number, since it is larger than the sum of its proper divisors (938323).

12198017 is an equidigital number, since it uses as much as digits as its factorization.

12198017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938322.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 12198017 is about 3492.5659621545. The cubic root of 12198017 is about 230.1952783890.

The spelling of 12198017 in words is "twelve million, one hundred ninety-eight thousand, seventeen".