201272520 has 64 divisors (see below), whose sum is σ = 639342720. Its totient is φ = 50514944.

The previous prime is 201272509. The next prime is 201272531. The reversal of 201272520 is 25272102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201272509) and next prime (201272531).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47292 + ... + 51371.

It is an arithmetic number, because the mean of its divisors is an integer number (9989730).

Almost surely, 2^201272520 is an apocalyptic number.

201272520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201272520 is an abundant number, since it is smaller than the sum of its proper divisors (438070200).

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

201272520 is a wasteful number, since it uses less digits than its factorization.

201272520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98694 (or 98690 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 201272520 is about 14187.0546626141. The cubic root of 201272520 is about 586.0412167618.

The spelling of 201272520 in words is "two hundred one million, two hundred seventy-two thousand, five hundred twenty".