22449851 has 2 divisors, whose sum is σ = 22449852. Its totient is φ = 22449850.

The previous prime is 22449841. The next prime is 22449853. The reversal of 22449851 is 15894422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22449851 - 2¹⁸ = 22187707 is a prime.

Together with 22449853, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22449853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11224925 + 11224926.

It is an arithmetic number, because the mean of its divisors is an integer number (11224926).

Almost surely, 2^22449851 is an apocalyptic number.

22449851 is a deficient number, since it is larger than the sum of its proper divisors (1).

22449851 is an equidigital number, since it uses as much as digits as its factorization.

22449851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 35.

The square root of 22449851 is about 4738.1273727075. The cubic root of 22449851 is about 282.1009103509.

The spelling of 22449851 in words is "twenty-two million, four hundred forty-nine thousand, eight hundred fifty-one".