201457856 has 14 divisors (see below), whose sum is σ = 399768060. Its totient is φ = 100728896.

The previous prime is 201457787. The next prime is 201457873. The reversal of 201457856 is 658754102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1573826 + ... + 1573953.

Almost surely, 2^201457856 is an apocalyptic number.

It is an amenable number.

201457856 is a deficient number, since it is larger than the sum of its proper divisors (198310204).

201457856 is an equidigital number, since it uses as much as digits as its factorization.

201457856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147791 (or 3147781 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 201457856 is about 14193.5850298647. The cubic root of 201457856 is about 586.2210412999.

The spelling of 201457856 in words is "two hundred one million, four hundred fifty-seven thousand, eight hundred fifty-six".