203193071 has 4 divisors (see below), whose sum is σ = 203269944. Its totient is φ = 203116200.

The previous prime is 203193059. The next prime is 203193143. The reversal of 203193071 is 170391302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 203193071 - 2¹⁸ = 202930927 is a prime.

It is a super-2 number, since 2×203193071² = 82574848204822082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203193071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203193371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34325 + ... + 39806.

It is an arithmetic number, because the mean of its divisors is an integer number (50817486).

Almost surely, 2^203193071 is an apocalyptic number.

203193071 is a deficient number, since it is larger than the sum of its proper divisors (76873).

203193071 is an equidigital number, since it uses as much as digits as its factorization.

203193071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76872.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 203193071 is about 14254.5807023567. The cubic root of 203193071 is about 587.8993292953.

The spelling of 203193071 in words is "two hundred three million, one hundred ninety-three thousand, seventy-one".