201403256 has 8 divisors (see below), whose sum is σ = 377631120. Its totient is φ = 100701624.

The previous prime is 201403229. The next prime is 201403297. The reversal of 201403256 is 652304102.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12587696 + ... + 12587711.

It is an arithmetic number, because the mean of its divisors is an integer number (47203890).

Almost surely, 2^201403256 is an apocalyptic number.

It is an amenable number.

201403256 is a deficient number, since it is larger than the sum of its proper divisors (176227864).

201403256 is a wasteful number, since it uses less digits than its factorization.

201403256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25175413 (or 25175409 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 201403256 is about 14191.6614953993. The cubic root of 201403256 is about 586.1680764407.

Adding to 201403256 its reverse (652304102), we get a palindrome (853707358).

The spelling of 201403256 in words is "two hundred one million, four hundred three thousand, two hundred fifty-six".