162223819 has 2 divisors, whose sum is σ = 162223820. Its totient is φ = 162223818.

The previous prime is 162223813. The next prime is 162223823. The reversal of 162223819 is 918322261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 162223819 - 2⁹ = 162223307 is a prime.

It is a super-2 number, since 2×162223819² = 52633134901889522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (162223813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81111909 + 81111910.

It is an arithmetic number, because the mean of its divisors is an integer number (81111910).

Almost surely, 2^162223819 is an apocalyptic number.

162223819 is a deficient number, since it is larger than the sum of its proper divisors (1).

162223819 is an equidigital number, since it uses as much as digits as its factorization.

162223819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 162223819 is about 12736.7114672509. The cubic root of 162223819 is about 545.3871154768.

The spelling of 162223819 in words is "one hundred sixty-two million, two hundred twenty-three thousand, eight hundred nineteen".