203052137 has 4 divisors (see below), whose sum is σ = 205145556. Its totient is φ = 200958720.

The previous prime is 203052133. The next prime is 203052167. The reversal of 203052137 is 731250302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 130393561 + 72658576 = 11419^2 + 8524^2 .

It is a cyclic number.

It is not a de Polignac number, because 203052137 - 2² = 203052133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203052133) 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, 1046564 + ... + 1046757.

It is an arithmetic number, because the mean of its divisors is an integer number (51286389).

Almost surely, 2^203052137 is an apocalyptic number.

It is an amenable number.

203052137 is a deficient number, since it is larger than the sum of its proper divisors (2093419).

203052137 is an equidigital number, since it uses as much as digits as its factorization.

203052137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093418.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 203052137 is about 14249.6363813257. The cubic root of 203052137 is about 587.7633762220.

The spelling of 203052137 in words is "two hundred three million, fifty-two thousand, one hundred thirty-seven".