201641162 has 4 divisors (see below), whose sum is σ = 302461746. Its totient is φ = 100820580.

The previous prime is 201641137. The next prime is 201641201. The reversal of 201641162 is 261146102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 195972001 + 5669161 = 13999^2 + 2381^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50410289 + ... + 50410292.

Almost surely, 2^201641162 is an apocalyptic number.

201641162 is a deficient number, since it is larger than the sum of its proper divisors (100820584).

201641162 is a wasteful number, since it uses less digits than its factorization.

201641162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100820583.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 201641162 is about 14200.0409154340. The cubic root of 201641162 is about 586.3987877542.

Adding to 201641162 its reverse (261146102), we get a palindrome (462787264).

The spelling of 201641162 in words is "two hundred one million, six hundred forty-one thousand, one hundred sixty-two".