24844139 has 2 divisors, whose sum is σ = 24844140. Its totient is φ = 24844138.

The previous prime is 24844103. The next prime is 24844147. The reversal of 24844139 is 93144842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 24844139 - 2²⁴ = 8066923 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 24844099 and 24844108.

It is not a weakly prime, because it can be changed into another prime (24840139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12422069 + 12422070.

It is an arithmetic number, because the mean of its divisors is an integer number (12422070).

Almost surely, 2^24844139 is an apocalyptic number.

24844139 is a deficient number, since it is larger than the sum of its proper divisors (1).

24844139 is an equidigital number, since it uses as much as digits as its factorization.

24844139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 35.

The square root of 24844139 is about 4984.3895313268. The cubic root of 24844139 is about 291.7928528640.

The spelling of 24844139 in words is "twenty-four million, eight hundred forty-four thousand, one hundred thirty-nine".