26222143 has 4 divisors (see below), whose sum is σ = 27764640. Its totient is φ = 24679648.

The previous prime is 26222113. The next prime is 26222149. The reversal of 26222143 is 34122262.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34122262 = 2 ⋅17061131.

It is not a de Polignac number, because 26222143 - 2⁹ = 26221631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26222149) 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 in 3 ways as a sum of consecutive naturals, for example, 771223 + ... + 771256.

It is an arithmetic number, because the mean of its divisors is an integer number (6941160).

Almost surely, 2^26222143 is an apocalyptic number.

26222143 is a deficient number, since it is larger than the sum of its proper divisors (1542497).

26222143 is a wasteful number, since it uses less digits than its factorization.

26222143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542496.

The product of its digits is 1152, while the sum is 22.

The square root of 26222143 is about 5120.7560965154. The cubic root of 26222143 is about 297.0909303743.

The spelling of 26222143 in words is "twenty-six million, two hundred twenty-two thousand, one hundred forty-three".