200137523 has 16 divisors (see below), whose sum is σ = 213340512. Its totient is φ = 187488000.

The previous prime is 200137517. The next prime is 200137537. The reversal of 200137523 is 325731002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200137523 is a prime.

It is a super-2 number, since 2×200137523² = 80110056225151058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200137123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106613 + ... + 108473.

It is an arithmetic number, because the mean of its divisors is an integer number (13333782).

Almost surely, 2^200137523 is an apocalyptic number.

200137523 is a deficient number, since it is larger than the sum of its proper divisors (13202989).

200137523 is a wasteful number, since it uses less digits than its factorization.

200137523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 200137523 is about 14146.9969604860. The cubic root of 200137523 is about 584.9375568288.

Adding to 200137523 its reverse (325731002), we get a palindrome (525868525).

The spelling of 200137523 in words is "two hundred million, one hundred thirty-seven thousand, five hundred twenty-three".