200042461 has 4 divisors (see below), whose sum is σ = 205449052. Its totient is φ = 194635872.

The previous prime is 200042443. The next prime is 200042489. The reversal of 200042461 is 164240002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 164240002 = 2 ⋅82120001.

It can be written as a sum of positive squares in 2 ways, for example, as 90839961 + 109202500 = 9531^2 + 10450^2 .

It is a cyclic number.

It is not a de Polignac number, because 200042461 - 2⁷ = 200042333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200072461) 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 in 3 ways as a sum of consecutive naturals, for example, 2703240 + ... + 2703313.

It is an arithmetic number, because the mean of its divisors is an integer number (51362263).

Almost surely, 2^200042461 is an apocalyptic number.

It is an amenable number.

200042461 is a deficient number, since it is larger than the sum of its proper divisors (5406591).

200042461 is an equidigital number, since it uses as much as digits as its factorization.

200042461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5406590.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 200042461 is about 14143.6367671119. The cubic root of 200042461 is about 584.8449302865.

Adding to 200042461 its reverse (164240002), we get a palindrome (364282463).

The spelling of 200042461 in words is "two hundred million, forty-two thousand, four hundred sixty-one".