203006141 has 4 divisors (see below), whose sum is σ = 218622012. Its totient is φ = 187390272.

The previous prime is 203006137. The next prime is 203006147. The reversal of 203006141 is 141600302.

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 71995225 + 131010916 = 8485^2 + 11446^2 .

It is a cyclic number.

It is not a de Polignac number, because 203006141 - 2² = 203006137 is a prime.

It is a super-2 number, since 2×203006141² = 82422986567423762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203006147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7807916 + ... + 7807941.

It is an arithmetic number, because the mean of its divisors is an integer number (54655503).

Almost surely, 2^203006141 is an apocalyptic number.

It is an amenable number.

203006141 is a deficient number, since it is larger than the sum of its proper divisors (15615871).

203006141 is a wasteful number, since it uses less digits than its factorization.

203006141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15615870.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 203006141 is about 14248.0223539971. The cubic root of 203006141 is about 587.7189922093.

Adding to 203006141 its reverse (141600302), we get a palindrome (344606443).

The spelling of 203006141 in words is "two hundred three million, six thousand, one hundred forty-one".