163273140 has 36 divisors (see below), whose sum is σ = 495262404. Its totient is φ = 43539456.

The previous prime is 163273133. The next prime is 163273141. The reversal of 163273140 is 41372361.

It can be written as a sum of positive squares in 2 ways, for example, as 66683556 + 96589584 = 8166^2 + 9828^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163273141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 453357 + ... + 453716.

It is an arithmetic number, because the mean of its divisors is an integer number (13757289).

Almost surely, 2^163273140 is an apocalyptic number.

163273140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163273140 is an abundant number, since it is smaller than the sum of its proper divisors (331989264).

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

163273140 is a wasteful number, since it uses less digits than its factorization.

163273140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907088 (or 907083 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 163273140 is about 12777.8378452694. The cubic root of 163273140 is about 546.5605080066.

The spelling of 163273140 in words is "one hundred sixty-three million, two hundred seventy-three thousand, one hundred forty".