201235134 has 32 divisors (see below), whose sum is σ = 413955360. Its totient is φ = 65177600.

The previous prime is 201235129. The next prime is 201235163. The reversal of 201235134 is 431532102.

It is a self number, because there is not a number n which added to its sum of digits gives 201235134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64654 + ... + 67694.

It is an arithmetic number, because the mean of its divisors is an integer number (12936105).

Almost surely, 2^201235134 is an apocalyptic number.

201235134 is an abundant number, since it is smaller than the sum of its proper divisors (212720226).

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

201235134 is a wasteful number, since it uses less digits than its factorization.

201235134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 201235134 is about 14185.7369917816. The cubic root of 201235134 is about 586.0049291559.

Adding to 201235134 its reverse (431532102), we get a palindrome (632767236).

The spelling of 201235134 in words is "two hundred one million, two hundred thirty-five thousand, one hundred thirty-four".