200042237 has 2 divisors, whose sum is σ = 200042238. Its totient is φ = 200042236.

The previous prime is 200042209. The next prime is 200042251. The reversal of 200042237 is 732240002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123899161 + 76143076 = 11131^2 + 8726^2 .

It is a cyclic number.

It is not a de Polignac number, because 200042237 - 2¹⁰ = 200041213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200042207) by changing a digit.

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 as a sum of consecutive naturals, namely, 100021118 + 100021119.

It is an arithmetic number, because the mean of its divisors is an integer number (100021119).

Almost surely, 2^200042237 is an apocalyptic number.

It is an amenable number.

200042237 is a deficient number, since it is larger than the sum of its proper divisors (1).

200042237 is an equidigital number, since it uses as much as digits as its factorization.

200042237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 200042237 is about 14143.6288483543. The cubic root of 200042237 is about 584.8447119907.

Adding to 200042237 its reverse (732240002), we get a palindrome (932282239).

The spelling of 200042237 in words is "two hundred million, forty-two thousand, two hundred thirty-seven".