24639161 has 2 divisors, whose sum is σ = 24639162. Its totient is φ = 24639160.

The previous prime is 24639157. The next prime is 24639193. The reversal of 24639161 is 16193642.

It is an a-pointer prime, because the next prime (24639193) can be obtained adding 24639161 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17977600 + 6661561 = 4240^2 + 2581^2 .

It is a cyclic number.

It is not a de Polignac number, because 24639161 - 2² = 24639157 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (24639061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12319580 + 12319581.

It is an arithmetic number, because the mean of its divisors is an integer number (12319581).

Almost surely, 2^24639161 is an apocalyptic number.

It is an amenable number.

24639161 is a deficient number, since it is larger than the sum of its proper divisors (1).

24639161 is an equidigital number, since it uses as much as digits as its factorization.

24639161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 24639161 is about 4963.7849469936. The cubic root of 24639161 is about 290.9881511297.

The spelling of 24639161 in words is "twenty-four million, six hundred thirty-nine thousand, one hundred sixty-one".