200136261 has 16 divisors (see below), whose sum is σ = 289046016. Its totient is φ = 122444736.

The previous prime is 200136229. The next prime is 200136263. The reversal of 200136261 is 162631002.

It is a happy number.

It is not a de Polignac number, because 200136261 - 2⁵ = 200136229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200136263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8085 + ... + 21578.

It is an arithmetic number, because the mean of its divisors is an integer number (18065376).

Almost surely, 2^200136261 is an apocalyptic number.

It is an amenable number.

200136261 is a deficient number, since it is larger than the sum of its proper divisors (88909755).

200136261 is a wasteful number, since it uses less digits than its factorization.

200136261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29852.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 200136261 is about 14146.9523573100. The cubic root of 200136261 is about 584.9363273530.

Adding to 200136261 its reverse (162631002), we get a palindrome (362767263).

The spelling of 200136261 in words is "two hundred million, one hundred thirty-six thousand, two hundred sixty-one".