200920531 has 6 divisors (see below), whose sum is σ = 233723940. Its totient is φ = 172217556.

The previous prime is 200920529. The next prime is 200920537. The reversal of 200920531 is 135029002.

It is not a de Polignac number, because 200920531 - 2¹ = 200920529 is a prime.

It is a super-2 number, since 2×200920531² = 80738119554643922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200920537) 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 5 ways as a sum of consecutive naturals, for example, 2050161 + ... + 2050258.

It is an arithmetic number, because the mean of its divisors is an integer number (38953990).

Almost surely, 2^200920531 is an apocalyptic number.

200920531 is a deficient number, since it is larger than the sum of its proper divisors (32803409).

200920531 is an equidigital number, since it uses as much as digits as its factorization.

200920531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100433 (or 4100426 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 200920531 is about 14174.6439461455. The cubic root of 200920531 is about 585.6993909501.

Adding to 200920531 its reverse (135029002), we get a palindrome (335949533).

The spelling of 200920531 in words is "two hundred million, nine hundred twenty thousand, five hundred thirty-one".