162346221 has 16 divisors (see below), whose sum is σ = 241053120. Its totient is φ = 107987760.

The previous prime is 162346187. The next prime is 162346237. The reversal of 162346221 is 122643261.

162346221 is a `hidden beast` number, since 1 + 6 + 2 + 34 + 622 + 1 = 666.

It is not a de Polignac number, because 162346221 - 2¹¹ = 162344173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162326221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5926 + ... + 18968.

It is an arithmetic number, because the mean of its divisors is an integer number (15065820).

Almost surely, 2^162346221 is an apocalyptic number.

It is an amenable number.

162346221 is a deficient number, since it is larger than the sum of its proper divisors (78706899).

162346221 is a wasteful number, since it uses less digits than its factorization.

162346221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13513 (or 13507 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 162346221 is about 12741.5156476771. The cubic root of 162346221 is about 545.5242504782.

Adding to 162346221 its reverse (122643261), we get a palindrome (284989482).

The spelling of 162346221 in words is "one hundred sixty-two million, three hundred forty-six thousand, two hundred twenty-one".