162523223 has 4 divisors (see below), whose sum is σ = 162647760. Its totient is φ = 162398688.

The previous prime is 162523201. The next prime is 162523271. The reversal of 162523223 is 322325261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322325261 = 1291 ⋅249671.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162523223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162523192 and 162523201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162223223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60290 + ... + 62927.

It is an arithmetic number, because the mean of its divisors is an integer number (40661940).

Almost surely, 2^162523223 is an apocalyptic number.

162523223 is a deficient number, since it is larger than the sum of its proper divisors (124537).

162523223 is a wasteful number, since it uses less digits than its factorization.

162523223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124536.

The product of its digits is 4320, while the sum is 26.

The square root of 162523223 is about 12748.4596324419. The cubic root of 162523223 is about 545.7224355917.

Adding to 162523223 its reverse (322325261), we get a palindrome (484848484).

The spelling of 162523223 in words is "one hundred sixty-two million, five hundred twenty-three thousand, two hundred twenty-three".