22381459 has 2 divisors, whose sum is σ = 22381460. Its totient is φ = 22381458.

The previous prime is 22381451. The next prime is 22381483. The reversal of 22381459 is 95418322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22381459 - 2³ = 22381451 is a prime.

It is not a weakly prime, because it can be changed into another prime (22381451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11190729 + 11190730.

It is an arithmetic number, because the mean of its divisors is an integer number (11190730).

Almost surely, 2^22381459 is an apocalyptic number.

22381459 is a deficient number, since it is larger than the sum of its proper divisors (1).

22381459 is an equidigital number, since it uses as much as digits as its factorization.

22381459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 22381459 is about 4730.9046703564. The cubic root of 22381459 is about 281.8141516436.

The spelling of 22381459 in words is "twenty-two million, three hundred eighty-one thousand, four hundred fifty-nine".