223147 has 6 divisors (see below), whose sum is σ = 230748. Its totient is φ = 215784.

The previous prime is 223133. The next prime is 223151. The reversal of 223147 is 741322.

It is not a de Polignac number, because 223147 - 2⁷ = 223019 is a prime.

It is a super-3 number, since 3×223147³ = 33334535845792569, which contains 333 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (223247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1288 + ... + 1450.

It is an arithmetic number, because the mean of its divisors is an integer number (38458).

2²²³¹⁴⁷ is an apocalyptic number.

223147 is the 253-rd centered heptagonal number.

223147 is a deficient number, since it is larger than the sum of its proper divisors (7601).

223147 is an equidigital number, since it uses as much as digits as its factorization.

223147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 200 counting only the distinct ones).

The product of its digits is 336, while the sum is 19.

The square root of 223147 is about 472.3843773877. The cubic root of 223147 is about 60.6545917816.

Adding to 223147 its reverse (741322), we get a palindrome (964469).

It can be divided in two parts, 2231 and 47, that added together give a triangular number (2278 = T₆₇).

The spelling of 223147 in words is "two hundred twenty-three thousand, one hundred forty-seven", and thus it is an iban number.