22566129 has 8 divisors (see below), whose sum is σ = 31671840. Its totient is φ = 14252256.

The previous prime is 22566107. The next prime is 22566133. The reversal of 22566129 is 92166522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22566129 - 2⁵ = 22566097 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22566129.

It is not an unprimeable number, because it can be changed into a prime (22566149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197892 + ... + 198005.

It is an arithmetic number, because the mean of its divisors is an integer number (3958980).

Almost surely, 2^22566129 is an apocalyptic number.

It is an amenable number.

22566129 is a deficient number, since it is larger than the sum of its proper divisors (9105711).

22566129 is a wasteful number, since it uses less digits than its factorization.

22566129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395919.

The product of its digits is 12960, while the sum is 33.

The square root of 22566129 is about 4750.3819846408. The cubic root of 22566129 is about 282.5871149092.

It can be divided in two parts, 2256 and 6129, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 22566129 in words is "twenty-two million, five hundred sixty-six thousand, one hundred twenty-nine".