304147145 has 4 divisors (see below), whose sum is σ = 364976580. Its totient is φ = 243317712.

The previous prime is 304147111. The next prime is 304147177. The reversal of 304147145 is 541741403.

It is a happy number.

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 202863049 + 101284096 = 14243^2 + 10064^2 .

It is a cyclic number.

It is not a de Polignac number, because 304147145 - 2²² = 299952841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30414710 + ... + 30414719.

It is an arithmetic number, because the mean of its divisors is an integer number (91244145).

Almost surely, 2^304147145 is an apocalyptic number.

It is an amenable number.

304147145 is a deficient number, since it is larger than the sum of its proper divisors (60829435).

304147145 is an equidigital number, since it uses as much as digits as its factorization.

304147145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60829434.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 304147145 is about 17439.8149359447. The cubic root of 304147145 is about 672.5035502362.

Adding to 304147145 its reverse (541741403), we get a palindrome (845888548).

The spelling of 304147145 in words is "three hundred four million, one hundred forty-seven thousand, one hundred forty-five".