24138931 has 2 divisors, whose sum is σ = 24138932. Its totient is φ = 24138930.

The previous prime is 24138913. The next prime is 24138941. The reversal of 24138931 is 13983142.

Together with previous prime (24138913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 24138931 - 2¹¹ = 24136883 is a prime.

It is a super-2 number, since 2×24138931² = 1165375979645522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 24138893 and 24138902.

It is not a weakly prime, because it can be changed into another prime (24138901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12069465 + 12069466.

It is an arithmetic number, because the mean of its divisors is an integer number (12069466).

Almost surely, 2^24138931 is an apocalyptic number.

24138931 is a deficient number, since it is larger than the sum of its proper divisors (1).

24138931 is an equidigital number, since it uses as much as digits as its factorization.

24138931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 24138931 is about 4913.1386098908. The cubic root of 24138931 is about 289.0054356564.

The spelling of 24138931 in words is "twenty-four million, one hundred thirty-eight thousand, nine hundred thirty-one".