24885139 has 2 divisors, whose sum is σ = 24885140. Its totient is φ = 24885138.

The previous prime is 24885131. The next prime is 24885173. The reversal of 24885139 is 93158842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 24885139 - 2³ = 24885131 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (24885131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12442569 + 12442570.

It is an arithmetic number, because the mean of its divisors is an integer number (12442570).

Almost surely, 2^24885139 is an apocalyptic number.

24885139 is a deficient number, since it is larger than the sum of its proper divisors (1).

24885139 is an equidigital number, since it uses as much as digits as its factorization.

24885139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 40.

The square root of 24885139 is about 4988.5006765560. The cubic root of 24885139 is about 291.9532787887.

The spelling of 24885139 in words is "twenty-four million, eight hundred eighty-five thousand, one hundred thirty-nine".