24312149 has 2 divisors, whose sum is σ = 24312150. Its totient is φ = 24312148.

The previous prime is 24312143. The next prime is 24312151. The reversal of 24312149 is 94121342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20340100 + 3972049 = 4510^2 + 1993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24312149 is a prime.

It is a Sophie Germain prime.

Together with 24312151, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24312143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12156074 + 12156075.

It is an arithmetic number, because the mean of its divisors is an integer number (12156075).

Almost surely, 2^24312149 is an apocalyptic number.

It is an amenable number.

24312149 is a deficient number, since it is larger than the sum of its proper divisors (1).

24312149 is an equidigital number, since it uses as much as digits as its factorization.

24312149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 24312149 is about 4930.7351378877. The cubic root of 24312149 is about 289.6950778355.

The spelling of 24312149 in words is "twenty-four million, three hundred twelve thousand, one hundred forty-nine".