201322134 has 24 divisors (see below), whose sum is σ = 469752192. Its totient is φ = 61945200.

The previous prime is 201322129. The next prime is 201322139. The reversal of 201322134 is 431223102.

It is an interprime number because it is at equal distance from previous prime (201322129) and next prime (201322139).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201322139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429942 + ... + 430409.

It is an arithmetic number, because the mean of its divisors is an integer number (19573008).

Almost surely, 2^201322134 is an apocalyptic number.

201322134 is an abundant number, since it is smaller than the sum of its proper divisors (268430058).

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

201322134 is a wasteful number, since it uses less digits than its factorization.

201322134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860372 (or 860369 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 201322134 is about 14188.8031207710. The cubic root of 201322134 is about 586.0893661733.

Adding to 201322134 its reverse (431223102), we get a palindrome (632545236).

The spelling of 201322134 in words is "two hundred one million, three hundred twenty-two thousand, one hundred thirty-four".