222969 has 4 divisors (see below), whose sum is σ = 297296. Its totient is φ = 148644.
The previous prime is 222967. The next prime is 222977. The reversal of 222969 is 969222.
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.
It is not a de Polignac number, because 222969 - 21 = 222967 is a prime.
It is a super-2 number, since 2×2229692 = 99430349922, which contains 22 as substring.
It is a D-number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (222967) 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, 37159 + ... + 37164.
It is an arithmetic number, because the mean of its divisors is an integer number (74324).
2222969 is an apocalyptic number.
It is an amenable number.
222969 is a deficient number, since it is larger than the sum of its proper divisors (74327).
222969 is an equidigital number, since it uses as much as digits as its factorization.
222969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 74326.
The product of its digits is 3888, while the sum is 30.
The square root of 222969 is about 472.1959339088. The cubic root of 222969 is about 60.6384598307.
The spelling of 222969 in words is "two hundred twenty-two thousand, nine hundred sixty-nine".
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