7161223 has 2 divisors, whose sum is σ = 7161224. Its totient is φ = 7161222.

The previous prime is 7161197. The next prime is 7161229. The reversal of 7161223 is 3221617.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7161223 - 2⁹ = 7160711 is a prime.

It is a super-2 number, since 2×7161223² = 102566229711458, which contains 22 as substring.

7161223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7161194 and 7161203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7161229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3580611 + 3580612.

It is an arithmetic number, because the mean of its divisors is an integer number (3580612).

Almost surely, 2^7161223 is an apocalyptic number.

7161223 is a deficient number, since it is larger than the sum of its proper divisors (1).

7161223 is an equidigital number, since it uses as much as digits as its factorization.

7161223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 22.

The square root of 7161223 is about 2676.0461505736. The cubic root of 7161223 is about 192.7505973381.

The spelling of 7161223 in words is "seven million, one hundred sixty-one thousand, two hundred twenty-three".