200540531 has 2 divisors, whose sum is σ = 200540532. Its totient is φ = 200540530.

The previous prime is 200540503. The next prime is 200540569. The reversal of 200540531 is 135045002.

200540531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200540531 - 2⁶ = 200540467 is a prime.

It is a super-2 number, since 2×200540531² = 80433009147523922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200540731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100270265 + 100270266.

It is an arithmetic number, because the mean of its divisors is an integer number (100270266).

Almost surely, 2^200540531 is an apocalyptic number.

200540531 is a deficient number, since it is larger than the sum of its proper divisors (1).

200540531 is an equidigital number, since it uses as much as digits as its factorization.

200540531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 200540531 is about 14161.2333855494. The cubic root of 200540531 is about 585.3299144750.

Adding to 200540531 its reverse (135045002), we get a palindrome (335585533).

The spelling of 200540531 in words is "two hundred million, five hundred forty thousand, five hundred thirty-one".