24247139 has 8 divisors (see below), whose sum is σ = 28101888. Its totient is φ = 20490120.

The previous prime is 24247133. The next prime is 24247147. The reversal of 24247139 is 93174242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 24247139 - 2⁴ = 24247123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24247133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23897 + ... + 24890.

It is an arithmetic number, because the mean of its divisors is an integer number (3512736).

Almost surely, 2^24247139 is an apocalyptic number.

24247139 is a deficient number, since it is larger than the sum of its proper divisors (3854749).

24247139 is an equidigital number, since it uses as much as digits as its factorization.

24247139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48865.

The product of its digits is 12096, while the sum is 32.

The square root of 24247139 is about 4924.1384017917. The cubic root of 24247139 is about 289.4366351894.

The spelling of 24247139 in words is "twenty-four million, two hundred forty-seven thousand, one hundred thirty-nine".