304242131 has 4 divisors (see below), whose sum is σ = 304277064. Its totient is φ = 304207200.

The previous prime is 304242097. The next prime is 304242143. The reversal of 304242131 is 131242403.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 304242131 - 2⁶ = 304242067 is a prime.

It is a super-2 number, since 2×304242131² = 185126548550842322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304242331) 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, 7376 + ... + 25746.

It is an arithmetic number, because the mean of its divisors is an integer number (76069266).

Almost surely, 2^304242131 is an apocalyptic number.

304242131 is a deficient number, since it is larger than the sum of its proper divisors (34933).

304242131 is a wasteful number, since it uses less digits than its factorization.

304242131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34932.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 304242131 is about 17442.5379747329. The cubic root of 304242131 is about 672.5735511931.

Adding to 304242131 its reverse (131242403), we get a palindrome (435484534).

The spelling of 304242131 in words is "three hundred four million, two hundred forty-two thousand, one hundred thirty-one".