12617258 has 16 divisors (see below), whose sum is σ = 19535040. Its totient is φ = 6108000.

The previous prime is 12617257. The next prime is 12617287. The reversal of 12617258 is 85271621.

It is not an unprimeable number, because it can be changed into a prime (12617251) 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, 11873 + ... + 12891.

It is an arithmetic number, because the mean of its divisors is an integer number (1220940).

Almost surely, 2^12617258 is an apocalyptic number.

12617258 is a deficient number, since it is larger than the sum of its proper divisors (6917782).

12617258 is a wasteful number, since it uses less digits than its factorization.

12617258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213.

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

The square root of 12617258 is about 3552.0779833782. The cubic root of 12617258 is about 232.8028688687.

Adding to 12617258 its reverse (85271621), we get a palindrome (97888879).

The spelling of 12617258 in words is "twelve million, six hundred seventeen thousand, two hundred fifty-eight".