12361261 has 8 divisors (see below), whose sum is σ = 14278464. Its totient is φ = 10576320.

The previous prime is 12361249. The next prime is 12361277. The reversal of 12361261 is 16216321.

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

It is a cyclic number.

It is not a de Polignac number, because 12361261 - 2²¹ = 10264109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12361201) 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, 32865 + ... + 33238.

It is an arithmetic number, because the mean of its divisors is an integer number (1784808).

Almost surely, 2^12361261 is an apocalyptic number.

12361261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12361261 is a deficient number, since it is larger than the sum of its proper divisors (1917203).

12361261 is a wasteful number, since it uses less digits than its factorization.

12361261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66131.

The product of its digits is 432, while the sum is 22.

The square root of 12361261 is about 3515.8585011345. The cubic root of 12361261 is about 231.2176194252.

Adding to 12361261 its reverse (16216321), we get a palindrome (28577582).

The spelling of 12361261 in words is "twelve million, three hundred sixty-one thousand, two hundred sixty-one".