12315726 has 28 divisors (see below), whose sum is σ = 27700992. Its totient is φ = 4104756.

The previous prime is 12315713. The next prime is 12315727. The reversal of 12315726 is 62751321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 12315726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12315727) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2766 + ... + 5681.

Almost surely, 2^12315726 is an apocalyptic number.

12315726 is an abundant number, since it is smaller than the sum of its proper divisors (15385266).

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

12315726 is an frugal number, since it uses more digits than its factorization.

12315726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8467 (or 8452 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 12315726 is about 3509.3768677644. The cubic root of 12315726 is about 230.9333590867.

It can be divided in two parts, 12315 and 726, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 12315726 in words is "twelve million, three hundred fifteen thousand, seven hundred twenty-six".