200042291 has 4 divisors (see below), whose sum is σ = 200872584. Its totient is φ = 199212000.

The previous prime is 200042257. The next prime is 200042327. The reversal of 200042291 is 192240002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192240002 = 2 ⋅96120001.

It is a cyclic number.

It is not a de Polignac number, because 200042291 - 2¹⁰ = 200041267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200042251) by changing a digit.

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, 414785 + ... + 415266.

It is an arithmetic number, because the mean of its divisors is an integer number (50218146).

Almost surely, 2^200042291 is an apocalyptic number.

200042291 is a deficient number, since it is larger than the sum of its proper divisors (830293).

200042291 is an equidigital number, since it uses as much as digits as its factorization.

200042291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830292.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 200042291 is about 14143.6307573409. The cubic root of 200042291 is about 584.8447646156.

Adding to 200042291 its reverse (192240002), we get a palindrome (392282293).

The spelling of 200042291 in words is "two hundred million, forty-two thousand, two hundred ninety-one".