22142459 has 2 divisors, whose sum is σ = 22142460. Its totient is φ = 22142458.

The previous prime is 22142447. The next prime is 22142507. The reversal of 22142459 is 95424122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22142459 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22142059) 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, 11071229 + 11071230.

It is an arithmetic number, because the mean of its divisors is an integer number (11071230).

Almost surely, 2^22142459 is an apocalyptic number.

22142459 is a deficient number, since it is larger than the sum of its proper divisors (1).

22142459 is an equidigital number, since it uses as much as digits as its factorization.

22142459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 22142459 is about 4705.5774353420. The cubic root of 22142459 is about 280.8074439725.

The spelling of 22142459 in words is "twenty-two million, one hundred forty-two thousand, four hundred fifty-nine".