201261256 has 32 divisors (see below), whose sum is σ = 434148480. Its totient is φ = 85680000.

The previous prime is 201261253. The next prime is 201261259. The reversal of 201261256 is 652162102.

201261256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201261253) and next prime (201261259).

It is a self number, because there is not a number n which added to its sum of digits gives 201261256.

It is not an unprimeable number, because it can be changed into a prime (201261253) 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, 3445 + ... + 20356.

It is an arithmetic number, because the mean of its divisors is an integer number (13567140).

Almost surely, 2^201261256 is an apocalyptic number.

It is an amenable number.

201261256 is an abundant number, since it is smaller than the sum of its proper divisors (232887224).

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

201261256 is a wasteful number, since it uses less digits than its factorization.

201261256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23965 (or 23961 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 201261256 is about 14186.6576754357. The cubic root of 201261256 is about 586.0302841692.

The spelling of 201261256 in words is "two hundred one million, two hundred sixty-one thousand, two hundred fifty-six".