12315284 has 6 divisors (see below), whose sum is σ = 21551754. Its totient is φ = 6157640.

The previous prime is 12315283. The next prime is 12315299. The reversal of 12315284 is 48251321.

It can be written as a sum of positive squares in only one way, i.e., 10432900 + 1882384 = 3230^2 + 1372^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12315283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1539407 + ... + 1539414.

It is an arithmetic number, because the mean of its divisors is an integer number (3591959).

Almost surely, 2^12315284 is an apocalyptic number.

It is an amenable number.

12315284 is a deficient number, since it is larger than the sum of its proper divisors (9236470).

12315284 is a wasteful number, since it uses less digits than its factorization.

12315284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078825 (or 3078823 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 12315284 is about 3509.3138930566. The cubic root of 12315284 is about 230.9305963922.

The spelling of 12315284 in words is "twelve million, three hundred fifteen thousand, two hundred eighty-four".