24148021 has 2 divisors, whose sum is σ = 24148022. Its totient is φ = 24148020.

The previous prime is 24147971. The next prime is 24148043. The reversal of 24148021 is 12084142.

It is an a-pointer prime, because the next prime (24148043) can be obtained adding 24148021 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24147396 + 625 = 4914^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 24148021 - 2⁹ = 24147509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 24147983 and 24148001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24148121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12074010 + 12074011.

It is an arithmetic number, because the mean of its divisors is an integer number (12074011).

Almost surely, 2^24148021 is an apocalyptic number.

It is an amenable number.

24148021 is a deficient number, since it is larger than the sum of its proper divisors (1).

24148021 is an equidigital number, since it uses as much as digits as its factorization.

24148021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 24148021 is about 4914.0635934021. The cubic root of 24148021 is about 289.0417080404.

The spelling of 24148021 in words is "twenty-four million, one hundred forty-eight thousand, twenty-one".