22148479 has 2 divisors, whose sum is σ = 22148480. Its totient is φ = 22148478.

The previous prime is 22148447. The next prime is 22148543. The reversal of 22148479 is 97484122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22148479 - 2⁵ = 22148447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22148179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11074239 + 11074240.

It is an arithmetic number, because the mean of its divisors is an integer number (11074240).

Almost surely, 2^22148479 is an apocalyptic number.

22148479 is a deficient number, since it is larger than the sum of its proper divisors (1).

22148479 is an equidigital number, since it uses as much as digits as its factorization.

22148479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 37.

The square root of 22148479 is about 4706.2170583176. The cubic root of 22148479 is about 280.8328899213.

The spelling of 22148479 in words is "twenty-two million, one hundred forty-eight thousand, four hundred seventy-nine".