220134023 has 4 divisors (see below), whose sum is σ = 221406648. Its totient is φ = 218861400.

The previous prime is 220134001. The next prime is 220134067. The reversal of 220134023 is 320431022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320431022 = 2 ⋅160215511.

It is a cyclic number.

It is not a de Polignac number, because 220134023 - 2⁶ = 220133959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220133992 and 220134010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220134623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636053 + ... + 636398.

It is an arithmetic number, because the mean of its divisors is an integer number (55351662).

Almost surely, 2^220134023 is an apocalyptic number.

220134023 is a deficient number, since it is larger than the sum of its proper divisors (1272625).

220134023 is a wasteful number, since it uses less digits than its factorization.

220134023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272624.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 220134023 is about 14836.9142007359. The cubic root of 220134023 is about 603.8036353838.

Adding to 220134023 its reverse (320431022), we get a palindrome (540565045).

The spelling of 220134023 in words is "two hundred twenty million, one hundred thirty-four thousand, twenty-three".