200137481 has 8 divisors (see below), whose sum is σ = 214096680. Its totient is φ = 186421248.

The previous prime is 200137471. The next prime is 200137489. The reversal of 200137481 is 184731002.

It can be written as a sum of positive squares in 4 ways, for example, as 37319881 + 162817600 = 6109^2 + 12760^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200137481 - 2²² = 195943177 is a prime.

It is a super-2 number, since 2×200137481² = 80110022602050722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200137481.

It is not an unprimeable number, because it can be changed into a prime (200137489) 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 7 ways as a sum of consecutive naturals, for example, 59036 + ... + 62333.

It is an arithmetic number, because the mean of its divisors is an integer number (26762085).

Almost surely, 2^200137481 is an apocalyptic number.

It is an amenable number.

200137481 is a deficient number, since it is larger than the sum of its proper divisors (13959199).

200137481 is a wasteful number, since it uses less digits than its factorization.

200137481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121483.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 200137481 is about 14146.9954760719. The cubic root of 200137481 is about 584.9375159113.

Adding to 200137481 its reverse (184731002), we get a palindrome (384868483).

The spelling of 200137481 in words is "two hundred million, one hundred thirty-seven thousand, four hundred eighty-one".