12214657 has 8 divisors (see below), whose sum is σ = 15033536. Its totient is φ = 9664272.

The previous prime is 12214639. The next prime is 12214673. The reversal of 12214657 is 75641221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12214657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12211657) 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, 67023 + ... + 67204.

It is an arithmetic number, because the mean of its divisors is an integer number (1879192).

Almost surely, 2^12214657 is an apocalyptic number.

It is an amenable number.

12214657 is a deficient number, since it is larger than the sum of its proper divisors (2818879).

12214657 is a wasteful number, since it uses less digits than its factorization.

12214657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134247.

The product of its digits is 3360, while the sum is 28.

The square root of 12214657 is about 3494.9473529654. The cubic root of 12214657 is about 230.2999049299.

Adding to 12214657 its reverse (75641221), we get a palindrome (87855878).

The spelling of 12214657 in words is "twelve million, two hundred fourteen thousand, six hundred fifty-seven".