162136220 has 24 divisors (see below), whose sum is σ = 349689984. Its totient is φ = 63101376.

The previous prime is 162136207. The next prime is 162136237. The reversal of 162136220 is 22631261.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108812 + ... + 110291.

It is an arithmetic number, because the mean of its divisors is an integer number (14570416).

Almost surely, 2^162136220 is an apocalyptic number.

162136220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162136220 is an abundant number, since it is smaller than the sum of its proper divisors (187553764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162136220 is a wasteful number, since it uses less digits than its factorization.

162136220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219149 (or 219147 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 162136220 is about 12733.2721639019. The cubic root of 162136220 is about 545.2889302079.

Adding to 162136220 its reverse (22631261), we get a palindrome (184767481).

The spelling of 162136220 in words is "one hundred sixty-two million, one hundred thirty-six thousand, two hundred twenty".