201315726 has 16 divisors (see below), whose sum is σ = 447368400. Its totient is φ = 67105224.

The previous prime is 201315707. The next prime is 201315731. The reversal of 201315726 is 627513102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 201315726.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1863981 + ... + 1864088.

It is an arithmetic number, because the mean of its divisors is an integer number (27960525).

Almost surely, 2^201315726 is an apocalyptic number.

201315726 is an abundant number, since it is smaller than the sum of its proper divisors (246052674).

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

201315726 is a wasteful number, since it uses less digits than its factorization.

201315726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728080 (or 3728074 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 201315726 is about 14188.5773071157. The cubic root of 201315726 is about 586.0831477802.

Adding to 201315726 its reverse (627513102), we get a palindrome (828828828).

The spelling of 201315726 in words is "two hundred one million, three hundred fifteen thousand, seven hundred twenty-six".