7147223 has 2 divisors, whose sum is σ = 7147224. Its totient is φ = 7147222.

The previous prime is 7147219. The next prime is 7147237. The reversal of 7147223 is 3227417.

It is a weak prime.

It is an emirp because it is prime and its reverse (3227417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7147223 - 2² = 7147219 is a prime.

It is a super-2 number, since 2×7147223² = 102165593223458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7147192 and 7147201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7147423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3573611 + 3573612.

It is an arithmetic number, because the mean of its divisors is an integer number (3573612).

Almost surely, 2^7147223 is an apocalyptic number.

7147223 is a deficient number, since it is larger than the sum of its proper divisors (1).

7147223 is an equidigital number, since it uses as much as digits as its factorization.

7147223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 26.

The square root of 7147223 is about 2673.4290714362. The cubic root of 7147223 is about 192.6249079701.

The spelling of 7147223 in words is "seven million, one hundred forty-seven thousand, two hundred twenty-three".