12617142 has 8 divisors (see below), whose sum is σ = 25234296. Its totient is φ = 4205712.

The previous prime is 12617141. The next prime is 12617149. The reversal of 12617142 is 24171621.

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

12617142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12617141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051423 + ... + 1051434.

It is an arithmetic number, because the mean of its divisors is an integer number (3154287).

Almost surely, 2^12617142 is an apocalyptic number.

12617142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12617142 is a wasteful number, since it uses less digits than its factorization.

12617142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102862.

The product of its digits is 672, while the sum is 24.

The square root of 12617142 is about 3552.0616548703. The cubic root of 12617142 is about 232.8021554222.

Adding to 12617142 its reverse (24171621), we get a palindrome (36788763).

The spelling of 12617142 in words is "twelve million, six hundred seventeen thousand, one hundred forty-two".