304213141 has 4 divisors (see below), whose sum is σ = 304461900. Its totient is φ = 303964384.

The previous prime is 304213139. The next prime is 304213159. The reversal of 304213141 is 141312403.

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 266636241 + 37576900 = 16329^2 + 6130^2 .

It is a cyclic number.

It is not a de Polignac number, because 304213141 - 2¹ = 304213139 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 (304213241) 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, 122536 + ... + 124993.

It is an arithmetic number, because the mean of its divisors is an integer number (76115475).

Almost surely, 2^304213141 is an apocalyptic number.

It is an amenable number.

304213141 is a deficient number, since it is larger than the sum of its proper divisors (248759).

304213141 is a wasteful number, since it uses less digits than its factorization.

304213141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248758.

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

The square root of 304213141 is about 17441.7069405491. The cubic root of 304213141 is about 672.5521882450.

Adding to 304213141 its reverse (141312403), we get a palindrome (445525544).

The spelling of 304213141 in words is "three hundred four million, two hundred thirteen thousand, one hundred forty-one".