24142381 has 2 divisors, whose sum is σ = 24142382. Its totient is φ = 24142380.

The previous prime is 24142367. The next prime is 24142421. The reversal of 24142381 is 18324142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24098281 + 44100 = 4909^2 + 210^2 .

It is a cyclic number.

It is not a de Polignac number, because 24142381 - 2⁷ = 24142253 is a prime.

It is a super-2 number, since 2×24142381² = 1165709120698322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24142351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12071190 + 12071191.

It is an arithmetic number, because the mean of its divisors is an integer number (12071191).

Almost surely, 2^24142381 is an apocalyptic number.

It is an amenable number.

24142381 is a deficient number, since it is larger than the sum of its proper divisors (1).

24142381 is an equidigital number, since it uses as much as digits as its factorization.

24142381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 25.

The square root of 24142381 is about 4913.4896967430. The cubic root of 24142381 is about 289.0192034748.

The spelling of 24142381 in words is "twenty-four million, one hundred forty-two thousand, three hundred eighty-one".