203968158 has 32 divisors (see below), whose sum is σ = 422495232. Its totient is φ = 65577600.

The previous prime is 203968157. The next prime is 203968169. The reversal of 203968158 is 851869302.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203968157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59910 + ... + 63222.

It is an arithmetic number, because the mean of its divisors is an integer number (13202976).

Almost surely, 2^203968158 is an apocalyptic number.

203968158 is an abundant number, since it is smaller than the sum of its proper divisors (218527074).

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

203968158 is a wasteful number, since it uses less digits than its factorization.

203968158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3680.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 203968158 is about 14281.7421206238. The cubic root of 203968158 is about 588.6459016009.

The spelling of 203968158 in words is "two hundred three million, nine hundred sixty-eight thousand, one hundred fifty-eight".