201243532 has 12 divisors (see below), whose sum is σ = 402487120. Its totient is φ = 86247216.

The previous prime is 201243509. The next prime is 201243533. The reversal of 201243532 is 235342102.

201243532 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (201243533) 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 3 ways as a sum of consecutive naturals, for example, 3593607 + ... + 3593662.

Almost surely, 2^201243532 is an apocalyptic number.

It is an amenable number.

201243532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201243532 is a wasteful number, since it uses less digits than its factorization.

201243532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7187280 (or 7187278 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 201243532 is about 14186.0329902337. The cubic root of 201243532 is about 586.0130808155.

Adding to 201243532 its reverse (235342102), we get a palindrome (436585634).

The spelling of 201243532 in words is "two hundred one million, two hundred forty-three thousand, five hundred thirty-two".