162211540 has 12 divisors (see below), whose sum is σ = 340644276. Its totient is φ = 64884608.

The previous prime is 162211513. The next prime is 162211541. The reversal of 162211540 is 45112261.

162211540 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51667344 + 110544196 = 7188^2 + 10514^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162211541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4055269 + ... + 4055308.

It is an arithmetic number, because the mean of its divisors is an integer number (28387023).

Almost surely, 2^162211540 is an apocalyptic number.

162211540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162211540 is an abundant number, since it is smaller than the sum of its proper divisors (178432736).

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

162211540 is a wasteful number, since it uses less digits than its factorization.

162211540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8110586 (or 8110584 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 162211540 is about 12736.2294263255. The cubic root of 162211540 is about 545.3733546999.

The spelling of 162211540 in words is "one hundred sixty-two million, two hundred eleven thousand, five hundred forty".