12312510 has 32 divisors (see below), whose sum is σ = 33772032. Its totient is φ = 2814240.

The previous prime is 12312497. The next prime is 12312511. The reversal of 12312510 is 1521321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12312510.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29106 + ... + 29525.

It is an arithmetic number, because the mean of its divisors is an integer number (1055376).

Almost surely, 2^12312510 is an apocalyptic number.

12312510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12312510 is an abundant number, since it is smaller than the sum of its proper divisors (21459522).

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

12312510 is a wasteful number, since it uses less digits than its factorization.

12312510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58648.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12312510 is about 3508.9186368453. The cubic root of 12312510 is about 230.9132561620.

Adding to 12312510 its reverse (1521321), we get a palindrome (13833831).

It can be divided in two parts, 1231 and 2510, that added together give a triangular number (3741 = T₈₆).

The spelling of 12312510 in words is "twelve million, three hundred twelve thousand, five hundred ten".