12249719 has 2 divisors, whose sum is σ = 12249720. Its totient is φ = 12249718.

The previous prime is 12249709. The next prime is 12249733. The reversal of 12249719 is 91794221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12249719 - 2⁴ = 12249703 is a prime.

It is a super-2 number, since 2×12249719² = 300111231157922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12249709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6124859 + 6124860.

It is an arithmetic number, because the mean of its divisors is an integer number (6124860).

Almost surely, 2^12249719 is an apocalyptic number.

12249719 is a deficient number, since it is larger than the sum of its proper divisors (1).

12249719 is an equidigital number, since it uses as much as digits as its factorization.

12249719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 35.

The square root of 12249719 is about 3499.9598569126. The cubic root of 12249719 is about 230.5200519601.

The spelling of 12249719 in words is "twelve million, two hundred forty-nine thousand, seven hundred nineteen".