12665149 has 8 divisors (see below), whose sum is σ = 14572800. Its totient is φ = 10782096.

The previous prime is 12665131. The next prime is 12665167. The reversal of 12665149 is 94156621.

It is an interprime number because it is at equal distance from previous prime (12665131) and next prime (12665167).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12665149 - 2¹⁷ = 12534077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12665449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5029 + ... + 7114.

It is an arithmetic number, because the mean of its divisors is an integer number (1821600).

Almost surely, 2^12665149 is an apocalyptic number.

It is an amenable number.

12665149 is a deficient number, since it is larger than the sum of its proper divisors (1907651).

12665149 is a wasteful number, since it uses less digits than its factorization.

12665149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12299.

The product of its digits is 12960, while the sum is 34.

The square root of 12665149 is about 3558.8128638635. The cubic root of 12665149 is about 233.0970449269.

The spelling of 12665149 in words is "twelve million, six hundred sixty-five thousand, one hundred forty-nine".