201271730 has 16 divisors (see below), whose sum is σ = 395224704. Its totient is φ = 73189680.

The previous prime is 201271711. The next prime is 201271739. The reversal of 201271730 is 37172102.

It is a junction number, because it is equal to n+sod(n) for n = 201271696 and 201271705.

It is not an unprimeable number, because it can be changed into a prime (201271739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914762 + ... + 914981.

It is an arithmetic number, because the mean of its divisors is an integer number (24701544).

Almost surely, 2^201271730 is an apocalyptic number.

201271730 is a deficient number, since it is larger than the sum of its proper divisors (193952974).

201271730 is a wasteful number, since it uses less digits than its factorization.

201271730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829761.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 201271730 is about 14187.0268203031. The cubic root of 201271730 is about 586.0404500183.

The spelling of 201271730 in words is "two hundred one million, two hundred seventy-one thousand, seven hundred thirty".