203201997 has 8 divisors (see below), whose sum is σ = 274647744. Its totient is φ = 133612128.

The previous prime is 203201981. The next prime is 203202007. The reversal of 203201997 is 799102302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203201997 - 2⁴ = 203201981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203201917) 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, 463713 + ... + 464150.

It is an arithmetic number, because the mean of its divisors is an integer number (34330968).

Almost surely, 2^203201997 is an apocalyptic number.

It is an amenable number.

203201997 is a deficient number, since it is larger than the sum of its proper divisors (71445747).

203201997 is an equidigital number, since it uses as much as digits as its factorization.

203201997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927939.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 203201997 is about 14254.8937912564. The cubic root of 203201997 is about 587.9079377131.

The spelling of 203201997 in words is "two hundred three million, two hundred one thousand, nine hundred ninety-seven".