12690189 has 12 divisors (see below), whose sum is σ = 19009536. Its totient is φ = 8459964.

The previous prime is 12690179. The next prime is 12690199. The reversal of 12690189 is 98109621.

It is an interprime number because it is at equal distance from previous prime (12690179) and next prime (12690199).

It is not a de Polignac number, because 12690189 - 2⁷ = 12690061 is a prime.

It is a super-2 number, since 2×12690189² = 322081793711442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12690179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25869 + ... + 26354.

It is an arithmetic number, because the mean of its divisors is an integer number (1584128).

Almost surely, 2^12690189 is an apocalyptic number.

It is an amenable number.

12690189 is a deficient number, since it is larger than the sum of its proper divisors (6319347).

12690189 is an frugal number, since it uses more digits than its factorization.

12690189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52238 (or 52226 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 12690189 is about 3562.3291537981. The cubic root of 12690189 is about 233.2505608903.

The spelling of 12690189 in words is "twelve million, six hundred ninety thousand, one hundred eighty-nine".