304146145 has 4 divisors (see below), whose sum is σ = 364975380. Its totient is φ = 243316912.

The previous prime is 304146131. The next prime is 304146149. The reversal of 304146145 is 541641403.

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 64144081 + 240002064 = 8009^2 + 15492^2 .

It is a cyclic number.

It is not a de Polignac number, because 304146145 - 2²³ = 295757537 is a prime.

It is a super-2 number, since 2×304146145² = 185009755036722050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (304146149) 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, 30414610 + ... + 30414619.

It is an arithmetic number, because the mean of its divisors is an integer number (91243845).

Almost surely, 2^304146145 is an apocalyptic number.

It is an amenable number.

304146145 is a deficient number, since it is larger than the sum of its proper divisors (60829235).

304146145 is an equidigital number, since it uses as much as digits as its factorization.

304146145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60829234.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 304146145 is about 17439.7862658921. The cubic root of 304146145 is about 672.5028131979.

Adding to 304146145 its reverse (541641403), we get a palindrome (845787548).

The spelling of 304146145 in words is "three hundred four million, one hundred forty-six thousand, one hundred forty-five".