12491316 has 36 divisors (see below), whose sum is σ = 31685472. Its totient is φ = 4149264.

The previous prime is 12491299. The next prime is 12491321. The reversal of 12491316 is 61319421.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12491316.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 16441 + ... + 17183.

It is an arithmetic number, because the mean of its divisors is an integer number (880152).

Almost surely, 2^12491316 is an apocalyptic number.

It is an amenable number.

12491316 is an abundant number, since it is smaller than the sum of its proper divisors (19194156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12491316 is a wasteful number, since it uses less digits than its factorization.

12491316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220 (or 1215 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 12491316 is about 3534.3055895041. The cubic root of 12491316 is about 232.0256858204.

The spelling of 12491316 in words is "twelve million, four hundred ninety-one thousand, three hundred sixteen".