203150243 has 4 divisors (see below), whose sum is σ = 205432920. Its totient is φ = 200867568.

The previous prime is 203150197. The next prime is 203150263. The reversal of 203150243 is 342051302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342051302 = 2 ⋅171025651.

It is a cyclic number.

It is not a de Polignac number, because 203150243 - 2⁶ = 203150179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203150263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1141205 + ... + 1141382.

It is an arithmetic number, because the mean of its divisors is an integer number (51358230).

Almost surely, 2^203150243 is an apocalyptic number.

203150243 is a deficient number, since it is larger than the sum of its proper divisors (2282677).

203150243 is an equidigital number, since it uses as much as digits as its factorization.

203150243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282676.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 203150243 is about 14253.0783692506. The cubic root of 203150243 is about 587.8580215847.

The spelling of 203150243 in words is "two hundred three million, one hundred fifty thousand, two hundred forty-three".