203041261 has 4 divisors (see below), whose sum is σ = 204523452. Its totient is φ = 201559072.

The previous prime is 203041259. The next prime is 203041271. The reversal of 203041261 is 162140302.

203041261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 155002500 + 48038761 = 12450^2 + 6931^2 .

It is a cyclic number.

It is not a de Polignac number, because 203041261 - 2¹ = 203041259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203041231) 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, 740890 + ... + 741163.

It is an arithmetic number, because the mean of its divisors is an integer number (51130863).

Almost surely, 2^203041261 is an apocalyptic number.

It is an amenable number.

203041261 is a deficient number, since it is larger than the sum of its proper divisors (1482191).

203041261 is a wasteful number, since it uses less digits than its factorization.

203041261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482190.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 203041261 is about 14249.2547524423. The cubic root of 203041261 is about 587.7528819901.

Adding to 203041261 its reverse (162140302), we get a palindrome (365181563).

It can be divided in two parts, 203041 and 261, that added together give a palindrome (203302).

The spelling of 203041261 in words is "two hundred three million, forty-one thousand, two hundred sixty-one".