220939167 has 4 divisors (see below), whose sum is σ = 294585560. Its totient is φ = 147292776.

The previous prime is 220939141. The next prime is 220939171. The reversal of 220939167 is 761939022.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 220939167 - 2⁸ = 220938911 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 (220939177) 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, 36823192 + ... + 36823197.

It is an arithmetic number, because the mean of its divisors is an integer number (73646390).

Almost surely, 2^220939167 is an apocalyptic number.

220939167 is a deficient number, since it is larger than the sum of its proper divisors (73646393).

220939167 is an equidigital number, since it uses as much as digits as its factorization.

220939167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73646392.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 220939167 is about 14864.0225712961. The cubic root of 220939167 is about 604.5388804703.

The spelling of 220939167 in words is "two hundred twenty million, nine hundred thirty-nine thousand, one hundred sixty-seven".