200142077 has 4 divisors (see below), whose sum is σ = 200715900. Its totient is φ = 199568256.

The previous prime is 200142049. The next prime is 200142083. The reversal of 200142077 is 770241002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 770241002 = 2 ⋅385120501.

It can be written as a sum of positive squares in 2 ways, for example, as 144624676 + 55517401 = 12026^2 + 7451^2 .

It is a cyclic number.

It is not a de Polignac number, because 200142077 - 2⁶ = 200142013 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 (200141077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286388 + ... + 287085.

It is an arithmetic number, because the mean of its divisors is an integer number (50178975).

Almost surely, 2^200142077 is an apocalyptic number.

It is an amenable number.

200142077 is a deficient number, since it is larger than the sum of its proper divisors (573823).

200142077 is an equidigital number, since it uses as much as digits as its factorization.

200142077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573822.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 200142077 is about 14147.1579124572. The cubic root of 200142077 is about 584.9419934205.

Adding to 200142077 its reverse (770241002), we get a palindrome (970383079).

The spelling of 200142077 in words is "two hundred million, one hundred forty-two thousand, seventy-seven".