201216956 has 12 divisors (see below), whose sum is σ = 354663960. Its totient is φ = 99884400.

The previous prime is 201216941. The next prime is 201217007. The reversal of 201216956 is 659612102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180395 + ... + 181506.

It is an arithmetic number, because the mean of its divisors is an integer number (29555330).

Almost surely, 2^201216956 is an apocalyptic number.

It is an amenable number.

201216956 is a deficient number, since it is larger than the sum of its proper divisors (153447004).

201216956 is a wasteful number, since it uses less digits than its factorization.

201216956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362044 (or 362042 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 201216956 is about 14185.0962633322. The cubic root of 201216956 is about 585.9872835985.

The spelling of 201216956 in words is "two hundred one million, two hundred sixteen thousand, nine hundred fifty-six".