201345020 has 12 divisors (see below), whose sum is σ = 422824584. Its totient is φ = 80538000.

The previous prime is 201345019. The next prime is 201345037. The reversal of 201345020 is 20543102.

It is a self number, because there is not a number n which added to its sum of digits gives 201345020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5033606 + ... + 5033645.

It is an arithmetic number, because the mean of its divisors is an integer number (35235382).

Almost surely, 2^201345020 is an apocalyptic number.

201345020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201345020 is an abundant number, since it is smaller than the sum of its proper divisors (221479564).

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

201345020 is a wasteful number, since it uses less digits than its factorization.

201345020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10067260 (or 10067258 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 201345020 is about 14189.6095788432. The cubic root of 201345020 is about 586.1115739202. Note that the first 3 decimals are identical.

Adding to 201345020 its reverse (20543102), we get a palindrome (221888122).

The spelling of 201345020 in words is "two hundred one million, three hundred forty-five thousand, twenty".