203173442 has 16 divisors (see below), whose sum is σ = 315025152. Its totient is φ = 98174160.

The previous prime is 203173429. The next prime is 203173447. The reversal of 203173442 is 244371302.

It is not an unprimeable number, because it can be changed into a prime (203173447) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 54428 + ... + 58040.

It is an arithmetic number, because the mean of its divisors is an integer number (19689072).

Almost surely, 2^203173442 is an apocalyptic number.

203173442 is a deficient number, since it is larger than the sum of its proper divisors (111851710).

203173442 is a wasteful number, since it uses less digits than its factorization.

203173442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4553.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 203173442 is about 14253.8921702109. The cubic root of 203173442 is about 587.8803977974.

The spelling of 203173442 in words is "two hundred three million, one hundred seventy-three thousand, four hundred forty-two".