12340251 has 24 divisors (see below), whose sum is σ = 22224384. Its totient is φ = 6410160.

The previous prime is 12340199. The next prime is 12340271. The reversal of 12340251 is 15204321.

12340251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12340251 - 2¹¹ = 12338203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12340271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8211 + ... + 9596.

It is an arithmetic number, because the mean of its divisors is an integer number (926016).

Almost surely, 2^12340251 is an apocalyptic number.

12340251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12340251 is a deficient number, since it is larger than the sum of its proper divisors (9884133).

12340251 is a wasteful number, since it uses less digits than its factorization.

12340251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17831 (or 17828 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12340251 is about 3512.8693400125. The cubic root of 12340251 is about 231.0865476561.

Adding to 12340251 its reverse (15204321), we get a palindrome (27544572).

The spelling of 12340251 in words is "twelve million, three hundred forty thousand, two hundred fifty-one".