201643114 has 4 divisors (see below), whose sum is σ = 302464674. Its totient is φ = 100821556.

The previous prime is 201643063. The next prime is 201643121. The reversal of 201643114 is 411346102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 411346102 = 2 ⋅205673051.

It can be written as a sum of positive squares in only one way, i.e., 187827025 + 13816089 = 13705^2 + 3717^2 .

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, 50410777 + ... + 50410780.

Almost surely, 2^201643114 is an apocalyptic number.

201643114 is a deficient number, since it is larger than the sum of its proper divisors (100821560).

201643114 is a wasteful number, since it uses less digits than its factorization.

201643114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100821559.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 201643114 is about 14200.1096474640. The cubic root of 201643114 is about 586.4006799716.

Adding to 201643114 its reverse (411346102), we get a palindrome (612989216).

The spelling of 201643114 in words is "two hundred one million, six hundred forty-three thousand, one hundred fourteen".