220426133 has 4 divisors (see below), whose sum is σ = 220498860. Its totient is φ = 220353408.

The previous prime is 220426111. The next prime is 220426147. The reversal of 220426133 is 331624022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331624022 = 2 ⋅165812011.

It can be written as a sum of positive squares in 2 ways, for example, as 172081924 + 48344209 = 13118^2 + 6953^2 .

It is a cyclic number.

It is not a de Polignac number, because 220426133 - 2⁶ = 220426069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220426099 and 220426108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220426333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31610 + ... + 37947.

It is an arithmetic number, because the mean of its divisors is an integer number (55124715).

Almost surely, 2^220426133 is an apocalyptic number.

It is an amenable number.

220426133 is a deficient number, since it is larger than the sum of its proper divisors (72727).

220426133 is an equidigital number, since it uses as much as digits as its factorization.

220426133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72726.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 220426133 is about 14846.7549653114. The cubic root of 220426133 is about 604.0705926365.

The spelling of 220426133 in words is "two hundred twenty million, four hundred twenty-six thousand, one hundred thirty-three".