22906129 has 4 divisors (see below), whose sum is σ = 23196160. Its totient is φ = 22616100.

The previous prime is 22906127. The next prime is 22906139. The reversal of 22906129 is 92160922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22906129 - 2¹ = 22906127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22906129.

It is not an unprimeable number, because it can be changed into a prime (22906127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144897 + ... + 145054.

It is an arithmetic number, because the mean of its divisors is an integer number (5799040).

Almost surely, 2^22906129 is an apocalyptic number.

It is an amenable number.

22906129 is a deficient number, since it is larger than the sum of its proper divisors (290031).

22906129 is an equidigital number, since it uses as much as digits as its factorization.

22906129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290030.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 22906129 is about 4786.0347888414. The cubic root of 22906129 is about 283.9992767620. Note that the first 3 decimals are identical.

The spelling of 22906129 in words is "twenty-two million, nine hundred six thousand, one hundred twenty-nine".