23008549 has 2 divisors, whose sum is σ = 23008550. Its totient is φ = 23008548.

The previous prime is 23008409. The next prime is 23008553. The reversal of 23008549 is 94580032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21068100 + 1940449 = 4590^2 + 1393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23008549 is a prime.

It is a Chen prime.

It is equal to p_1448752 and since 23008549 and 1448752 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23008549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23008589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11504274 + 11504275.

It is an arithmetic number, because the mean of its divisors is an integer number (11504275).

Almost surely, 2^23008549 is an apocalyptic number.

It is an amenable number.

23008549 is a deficient number, since it is larger than the sum of its proper divisors (1).

23008549 is an equidigital number, since it uses as much as digits as its factorization.

23008549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 23008549 is about 4796.7227353684. The cubic root of 23008549 is about 284.4219287202.

The spelling of 23008549 in words is "twenty-three million, eight thousand, five hundred forty-nine".