12898169 has 6 divisors (see below), whose sum is σ = 13613130. Its totient is φ = 12218976.

The previous prime is 12898157. The next prime is 12898183. The reversal of 12898169 is 96189821.

It can be written as a sum of positive squares in only one way, i.e., 7075600 + 5822569 = 2660^2 + 2413^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12898169 is a prime.

It is a super-2 number, since 2×12898169² = 332725527105122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12894169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17504 + ... + 18225.

It is an arithmetic number, because the mean of its divisors is an integer number (2268855).

Almost surely, 2^12898169 is an apocalyptic number.

12898169 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12898169 is a deficient number, since it is larger than the sum of its proper divisors (714961).

12898169 is an equidigital number, since it uses as much as digits as its factorization.

12898169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35767 (or 35748 counting only the distinct ones).

The product of its digits is 62208, while the sum is 44.

The square root of 12898169 is about 3591.4020938904. The cubic root of 12898169 is about 234.5179131710.

The spelling of 12898169 in words is "twelve million, eight hundred ninety-eight thousand, one hundred sixty-nine".