22651423 has 2 divisors, whose sum is σ = 22651424. Its totient is φ = 22651422.

The previous prime is 22651417. The next prime is 22651441. The reversal of 22651423 is 32415622.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22651423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22651403) 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, 11325711 + 11325712.

It is an arithmetic number, because the mean of its divisors is an integer number (11325712).

Almost surely, 2^22651423 is an apocalyptic number.

22651423 is a deficient number, since it is larger than the sum of its proper divisors (1).

22651423 is an equidigital number, since it uses as much as digits as its factorization.

22651423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 25.

The square root of 22651423 is about 4759.3511112335. The cubic root of 22651423 is about 282.9427021309.

The spelling of 22651423 in words is "twenty-two million, six hundred fifty-one thousand, four hundred twenty-three".