201204531 has 12 divisors (see below), whose sum is σ = 317049720. Its totient is φ = 121942080.

The previous prime is 201204511. The next prime is 201204559. The reversal of 201204531 is 135402102.

It is not a de Polignac number, because 201204531 - 2⁵ = 201204499 is a prime.

It is a super-2 number, since 2×201204531² = 80966526589859922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201204511) 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 11 ways as a sum of consecutive naturals, for example, 1016086 + ... + 1016283.

It is an arithmetic number, because the mean of its divisors is an integer number (26420810).

Almost surely, 2^201204531 is an apocalyptic number.

201204531 is a deficient number, since it is larger than the sum of its proper divisors (115845189).

201204531 is a wasteful number, since it uses less digits than its factorization.

201204531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032386 (or 2032383 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 201204531 is about 14184.6582969066. The cubic root of 201204531 is about 585.9752219213.

Adding to 201204531 its reverse (135402102), we get a palindrome (336606633).

The spelling of 201204531 in words is "two hundred one million, two hundred four thousand, five hundred thirty-one".