220019093 has 4 divisors (see below), whose sum is σ = 251450400. Its totient is φ = 188587788.

The previous prime is 220019077. The next prime is 220019099. The reversal of 220019093 is 390910022.

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, and also an emirpimes, since its reverse is a distinct semiprime: 390910022 = 2 ⋅195455011.

It is a cyclic number.

It is not a de Polignac number, because 220019093 - 2⁴ = 220019077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220019099) 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, 15715643 + ... + 15715656.

It is an arithmetic number, because the mean of its divisors is an integer number (62862600).

Almost surely, 2^220019093 is an apocalyptic number.

It is an amenable number.

220019093 is a deficient number, since it is larger than the sum of its proper divisors (31431307).

220019093 is an equidigital number, since it uses as much as digits as its factorization.

220019093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31431306.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 220019093 is about 14833.0405851262. The cubic root of 220019093 is about 603.6985369363.

The spelling of 220019093 in words is "two hundred twenty million, nineteen thousand, ninety-three".