20223135 has 32 divisors (see below), whose sum is σ = 36576000. Its totient is φ = 10598688.

The previous prime is 20223109. The next prime is 20223139. The reversal of 20223135 is 53132202.

It is not a de Polignac number, because 20223135 - 2⁵ = 20223103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223139) 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 31 ways as a sum of consecutive naturals, for example, 6696 + ... + 9234.

It is an arithmetic number, because the mean of its divisors is an integer number (1143000).

Almost surely, 2^20223135 is an apocalyptic number.

20223135 is a deficient number, since it is larger than the sum of its proper divisors (16352865).

20223135 is a wasteful number, since it uses less digits than its factorization.

20223135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612 (or 2606 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 20223135 is about 4497.0140093177. The cubic root of 20223135 is about 272.4474999160.

Adding to 20223135 its reverse (53132202), we get a palindrome (73355337).

The spelling of 20223135 in words is "twenty million, two hundred twenty-three thousand, one hundred thirty-five".