162164181 has 16 divisors (see below), whose sum is σ = 218308608. Its totient is φ = 107070000.

The previous prime is 162164179. The next prime is 162164227. The reversal of 162164181 is 181461261.

It is not a de Polignac number, because 162164181 - 2¹ = 162164179 is a prime.

It is a super-2 number, since 2×162164181² = 52594443198801522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162164161) 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, 215556 + ... + 216306.

It is an arithmetic number, because the mean of its divisors is an integer number (13644288).

Almost surely, 2^162164181 is an apocalyptic number.

It is an amenable number.

162164181 is a deficient number, since it is larger than the sum of its proper divisors (56144427).

162164181 is a wasteful number, since it uses less digits than its factorization.

162164181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352.

The product of its digits is 2304, while the sum is 30.

The square root of 162164181 is about 12734.3700668702. The cubic root of 162164181 is about 545.3202741141.

The spelling of 162164181 in words is "one hundred sixty-two million, one hundred sixty-four thousand, one hundred eighty-one".