12317261 has 16 divisors (see below), whose sum is σ = 14224896. Its totient is φ = 10560000.

The previous prime is 12317251. The next prime is 12317273. The reversal of 12317261 is 16271321.

It is not a de Polignac number, because 12317261 - 2¹⁸ = 12055117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12317251) 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, 13541 + ... + 14421.

It is an arithmetic number, because the mean of its divisors is an integer number (889056).

Almost surely, 2^12317261 is an apocalyptic number.

12317261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12317261 is a deficient number, since it is larger than the sum of its proper divisors (1907635).

12317261 is a wasteful number, since it uses less digits than its factorization.

12317261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964.

The product of its digits is 504, while the sum is 23.

The square root of 12317261 is about 3509.5955607449. The cubic root of 12317261 is about 230.9429529988.

Adding to 12317261 its reverse (16271321), we get a palindrome (28588582).

The spelling of 12317261 in words is "twelve million, three hundred seventeen thousand, two hundred sixty-one".