24979151 has 2 divisors, whose sum is σ = 24979152. Its totient is φ = 24979150.

The previous prime is 24979147. The next prime is 24979153. The reversal of 24979151 is 15197942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 24979151 - 2² = 24979147 is a prime.

Together with 24979153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24979153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12489575 + 12489576.

It is an arithmetic number, because the mean of its divisors is an integer number (12489576).

Almost surely, 2^24979151 is an apocalyptic number.

24979151 is a deficient number, since it is larger than the sum of its proper divisors (1).

24979151 is an equidigital number, since it uses as much as digits as its factorization.

24979151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 38.

The square root of 24979151 is about 4997.9146651379. The cubic root of 24979151 is about 292.3204674206.

The spelling of 24979151 in words is "twenty-four million, nine hundred seventy-nine thousand, one hundred fifty-one".