201423524 has 24 divisors (see below), whose sum is σ = 363568128. Its totient is φ = 97584480.

The previous prime is 201423499. The next prime is 201423527. The reversal of 201423524 is 425324102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201423524.

It is not an unprimeable number, because it can be changed into a prime (201423527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17234 + ... + 26454.

It is an arithmetic number, because the mean of its divisors is an integer number (15148672).

Almost surely, 2^201423524 is an apocalyptic number.

It is an amenable number.

201423524 is a deficient number, since it is larger than the sum of its proper divisors (162144604).

201423524 is a wasteful number, since it uses less digits than its factorization.

201423524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9395 (or 9393 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 201423524 is about 14192.3755587287. The cubic root of 201423524 is about 586.1877385791.

Adding to 201423524 its reverse (425324102), we get a palindrome (626747626).

The spelling of 201423524 in words is "two hundred one million, four hundred twenty-three thousand, five hundred twenty-four".