305330145 has 16 divisors (see below), whose sum is σ = 491261760. Its totient is φ = 161931584.

The previous prime is 305330131. The next prime is 305330153. The reversal of 305330145 is 541033503.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 305330145 - 2⁷ = 305330017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54174 + ... + 59543.

It is an arithmetic number, because the mean of its divisors is an integer number (30703860).

Almost surely, 2^305330145 is an apocalyptic number.

It is an amenable number.

305330145 is a deficient number, since it is larger than the sum of its proper divisors (185931615).

305330145 is a wasteful number, since it uses less digits than its factorization.

305330145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113904.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 305330145 is about 17473.6986639921. The cubic root of 305330145 is about 673.3743375730.

Adding to 305330145 its reverse (541033503), we get a palindrome (846363648).

The spelling of 305330145 in words is "three hundred five million, three hundred thirty thousand, one hundred forty-five".