200142461 has 2 divisors, whose sum is σ = 200142462. Its totient is φ = 200142460.

The previous prime is 200142457. The next prime is 200142487. The reversal of 200142461 is 164241002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158281561 + 41860900 = 12581^2 + 6470^2 .

It is a cyclic number.

It is not a de Polignac number, because 200142461 - 2² = 200142457 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200142401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100071230 + 100071231.

It is an arithmetic number, because the mean of its divisors is an integer number (100071231).

Almost surely, 2^200142461 is an apocalyptic number.

It is an amenable number.

200142461 is a deficient number, since it is larger than the sum of its proper divisors (1).

200142461 is an equidigital number, since it uses as much as digits as its factorization.

200142461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 200142461 is about 14147.1714840812. The cubic root of 200142461 is about 584.9423675174.

Adding to 200142461 its reverse (164241002), we get a palindrome (364383463).

The spelling of 200142461 in words is "two hundred million, one hundred forty-two thousand, four hundred sixty-one".