24729149 has 2 divisors, whose sum is σ = 24729150. Its totient is φ = 24729148.

The previous prime is 24729113. The next prime is 24729151. The reversal of 24729149 is 94192742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22992025 + 1737124 = 4795^2 + 1318^2 .

It is a cyclic number.

It is not a de Polignac number, because 24729149 - 2¹² = 24725053 is a prime.

It is a super-2 number, since 2×24729149² = 1223061620528402, which contains 22 as substring.

Together with 24729151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24729179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12364574 + 12364575.

It is an arithmetic number, because the mean of its divisors is an integer number (12364575).

Almost surely, 2^24729149 is an apocalyptic number.

It is an amenable number.

24729149 is a deficient number, since it is larger than the sum of its proper divisors (1).

24729149 is an equidigital number, since it uses as much as digits as its factorization.

24729149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 24729149 is about 4972.8411396303. The cubic root of 24729149 is about 291.3419730774.

The spelling of 24729149 in words is "twenty-four million, seven hundred twenty-nine thousand, one hundred forty-nine".