12507210 has 48 divisors (see below), whose sum is σ = 33729696. Its totient is φ = 3334608.

The previous prime is 12507203. The next prime is 12507241. The reversal of 12507210 is 1270521.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon 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 23 ways as a sum of consecutive naturals, for example, 144 + ... + 5003.

It is an arithmetic number, because the mean of its divisors is an integer number (702702).

Almost surely, 2^12507210 is an apocalyptic number.

12507210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12507210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16864848).

12507210 is an abundant number, since it is smaller than the sum of its proper divisors (21222486).

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

12507210 is an equidigital number, since it uses as much as digits as its factorization.

12507210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5169 (or 5157 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 12507210 is about 3536.5534069204. The cubic root of 12507210 is about 232.1240542449.

Adding to 12507210 its reverse (1270521), we get a palindrome (13777731).

The spelling of 12507210 in words is "twelve million, five hundred seven thousand, two hundred ten".