12356949 has 16 divisors (see below), whose sum is σ = 18414144. Its totient is φ = 7305600.

The previous prime is 12356947. The next prime is 12356951. The reversal of 12356949 is 94965321.

It is an interprime number because it is at equal distance from previous prime (12356947) and next prime (12356951).

It is not a de Polignac number, because 12356949 - 2¹ = 12356947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12356947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3214 + ... + 5919.

It is an arithmetic number, because the mean of its divisors is an integer number (1150884).

Almost surely, 2^12356949 is an apocalyptic number.

It is an amenable number.

12356949 is a deficient number, since it is larger than the sum of its proper divisors (6057195).

12356949 is a wasteful number, since it uses less digits than its factorization.

12356949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9188.

The product of its digits is 58320, while the sum is 39.

The square root of 12356949 is about 3515.2452261542. The cubic root of 12356949 is about 231.1907309515.

The spelling of 12356949 in words is "twelve million, three hundred fifty-six thousand, nine hundred forty-nine".