201141242 has 4 divisors (see below), whose sum is σ = 301711866. Its totient is φ = 100570620.

The previous prime is 201141223. The next prime is 201141289. The reversal of 201141242 is 242141102.

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., 114297481 + 86843761 = 10691^2 + 9319^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201141242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50285309 + ... + 50285312.

Almost surely, 2^201141242 is an apocalyptic number.

201141242 is a deficient number, since it is larger than the sum of its proper divisors (100570624).

201141242 is a wasteful number, since it uses less digits than its factorization.

201141242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100570623.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 201141242 is about 14182.4272252672. The cubic root of 201141242 is about 585.9137758648.

Adding to 201141242 its reverse (242141102), we get a palindrome (443282344).

The spelling of 201141242 in words is "two hundred one million, one hundred forty-one thousand, two hundred forty-two".