200302981 has 2 divisors, whose sum is σ = 200302982. Its totient is φ = 200302980.

The previous prime is 200302943. The next prime is 200303011. The reversal of 200302981 is 189203002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119464900 + 80838081 = 10930^2 + 8991^2 .

It is a cyclic number.

It is not a de Polignac number, because 200302981 - 2²¹ = 198205829 is a prime.

It is a super-2 number, since 2×200302981² = 80242568394972722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200372981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100151490 + 100151491.

It is an arithmetic number, because the mean of its divisors is an integer number (100151491).

Almost surely, 2^200302981 is an apocalyptic number.

It is an amenable number.

200302981 is a deficient number, since it is larger than the sum of its proper divisors (1).

200302981 is an equidigital number, since it uses as much as digits as its factorization.

200302981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 200302981 is about 14152.8435658704. The cubic root of 200302981 is about 585.0987059199.

Adding to 200302981 its reverse (189203002), we get a palindrome (389505983).

The spelling of 200302981 in words is "two hundred million, three hundred two thousand, nine hundred eighty-one".