200015161 has 4 divisors (see below), whose sum is σ = 201171492. Its totient is φ = 198858832.

The previous prime is 200015141. The next prime is 200015173. The reversal of 200015161 is 161510002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83375161 + 116640000 = 9131^2 + 10800^2 .

It is a cyclic number.

It is not a de Polignac number, because 200015161 - 2¹⁹ = 199490873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200015141) 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, 577906 + ... + 578251.

It is an arithmetic number, because the mean of its divisors is an integer number (50292873).

Almost surely, 2^200015161 is an apocalyptic number.

It is an amenable number.

200015161 is a deficient number, since it is larger than the sum of its proper divisors (1156331).

200015161 is a wasteful number, since it uses less digits than its factorization.

200015161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156330.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 200015161 is about 14142.6716358685. The cubic root of 200015161 is about 584.8183242802.

Adding to 200015161 its reverse (161510002), we get a palindrome (361525163).

It can be divided in two parts, 2000 and 15161, that added together give a square (17161 = 131²).

The spelling of 200015161 in words is "two hundred million, fifteen thousand, one hundred sixty-one".