12147316 has 24 divisors (see below), whose sum is σ = 23062536. Its totient is φ = 5575680.

The previous prime is 12147293. The next prime is 12147323. The reversal of 12147316 is 61374121.

It can be written as a sum of positive squares in 4 ways, for example, as 4284900 + 7862416 = 2070^2 + 2804^2 .

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 7 ways as a sum of consecutive naturals, for example, 610 + ... + 4966.

It is an arithmetic number, because the mean of its divisors is an integer number (960939).

Almost surely, 2^12147316 is an apocalyptic number.

It is an amenable number.

12147316 is a deficient number, since it is larger than the sum of its proper divisors (10915220).

12147316 is a wasteful number, since it uses less digits than its factorization.

12147316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419 (or 4417 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 12147316 is about 3485.2999870886. The cubic root of 12147316 is about 229.8759002861.

The spelling of 12147316 in words is "twelve million, one hundred forty-seven thousand, three hundred sixteen".