12251687 has 16 divisors (see below), whose sum is σ = 14387712. Its totient is φ = 10216800.

The previous prime is 12251677. The next prime is 12251719. The reversal of 12251687 is 78615221.

It is a cyclic number.

It is not a de Polignac number, because 12251687 - 2⁴ = 12251671 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 (12251647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70733 + ... + 70905.

It is an arithmetic number, because the mean of its divisors is an integer number (899232).

Almost surely, 2^12251687 is an apocalyptic number.

12251687 is a deficient number, since it is larger than the sum of its proper divisors (2136025).

12251687 is a wasteful number, since it uses less digits than its factorization.

12251687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398.

The product of its digits is 6720, while the sum is 32.

The square root of 12251687 is about 3500.2409917033. The cubic root of 12251687 is about 230.5323961662.

The spelling of 12251687 in words is "twelve million, two hundred fifty-one thousand, six hundred eighty-seven".