201142232 has 16 divisors (see below), whose sum is σ = 399326760. Its totient is φ = 94655104.

The previous prime is 201142171. The next prime is 201142243. The reversal of 201142232 is 232241102.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 201142232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739358 + ... + 739629.

Almost surely, 2^201142232 is an apocalyptic number.

It is an amenable number.

201142232 is a deficient number, since it is larger than the sum of its proper divisors (198184528).

201142232 is a wasteful number, since it uses less digits than its factorization.

201142232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479010 (or 1479006 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 201142232 is about 14182.4621275715. The cubic root of 201142232 is about 585.9147371357.

Adding to 201142232 its reverse (232241102), we get a palindrome (433383334).

The spelling of 201142232 in words is "two hundred one million, one hundred forty-two thousand, two hundred thirty-two".