12717201 has 16 divisors (see below), whose sum is σ = 19436544. Its totient is φ = 7245264.

The previous prime is 12717193. The next prime is 12717209. The reversal of 12717201 is 10271721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12717193) and next prime (12717209).

It is not a de Polignac number, because 12717201 - 2³ = 12717193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12717209) 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, 8620 + ... + 9986.

It is an arithmetic number, because the mean of its divisors is an integer number (1214784).

Almost surely, 2^12717201 is an apocalyptic number.

It is an amenable number.

12717201 is a deficient number, since it is larger than the sum of its proper divisors (6719343).

12717201 is a wasteful number, since it uses less digits than its factorization.

12717201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820.

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 12717201 is about 3566.1184781216. The cubic root of 12717201 is about 233.4159405923.

Adding to 12717201 its reverse (10271721), we get a palindrome (22988922).

It can be divided in two parts, 1271720 and 1, that added together give a palindrome (1271721).

The spelling of 12717201 in words is "twelve million, seven hundred seventeen thousand, two hundred one".