201261330 has 24 divisors (see below), whose sum is σ = 523279692. Its totient is φ = 53669664.

The previous prime is 201261301. The next prime is 201261337. The reversal of 201261330 is 33162102.

201261330 is a `hidden beast` number, since 20 + 1 + 2 + 613 + 30 = 666.

201261330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 200590569 + 670761 = 14163^2 + 819^2 .

It is a super-2 number, since 2×201261330² = 81012245906737800, which contains 22 as substring.

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 (201261337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1118029 + ... + 1118208.

Almost surely, 2^201261330 is an apocalyptic number.

201261330 is an abundant number, since it is smaller than the sum of its proper divisors (322018362).

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

201261330 is a wasteful number, since it uses less digits than its factorization.

201261330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236250 (or 2236247 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 201261330 is about 14186.6602835199. The cubic root of 201261330 is about 586.0303559933.

The spelling of 201261330 in words is "two hundred one million, two hundred sixty-one thousand, three hundred thirty".