201343500 has 144 divisors (see below), whose sum is σ = 642908448. Its totient is φ = 53040000.

The previous prime is 201343489. The next prime is 201343507. The reversal of 201343500 is 5343102.

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

It is not an unprimeable number, because it can be changed into a prime (201343507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 454279 + ... + 454721.

It is an arithmetic number, because the mean of its divisors is an integer number (4464642).

Almost surely, 2^201343500 is an apocalyptic number.

201343500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201343500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321454224).

201343500 is an abundant number, since it is smaller than the sum of its proper divisors (441564948).

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

201343500 is a wasteful number, since it uses less digits than its factorization.

201343500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 201343500 is about 14189.5560184243. The cubic root of 201343500 is about 586.1100990194.

Adding to 201343500 its reverse (5343102), we get a palindrome (206686602).

The spelling of 201343500 in words is "two hundred one million, three hundred forty-three thousand, five hundred".