201142160 has 20 divisors (see below), whose sum is σ = 467655708. Its totient is φ = 80456832.

The previous prime is 201142141. The next prime is 201142171. The reversal of 201142160 is 61241102.

It can be written as a sum of positive squares in 2 ways, for example, as 78287104 + 122855056 = 8848^2 + 11084^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1257059 + ... + 1257218.

Almost surely, 2^201142160 is an apocalyptic number.

201142160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201142160 is an abundant number, since it is smaller than the sum of its proper divisors (266513548).

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

201142160 is a wasteful number, since it uses less digits than its factorization.

201142160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514290 (or 2514284 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 201142160 is about 14182.4595892250. The cubic root of 201142160 is about 585.9146672252.

Adding to 201142160 its reverse (61241102), we get a palindrome (262383262).

The spelling of 201142160 in words is "two hundred one million, one hundred forty-two thousand, one hundred sixty".