307045 has 4 divisors (see below), whose sum is σ = 368460. Its totient is φ = 245632.

The previous prime is 307033. The next prime is 307067. The reversal of 307045 is 540703.

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 224676 + 82369 = 474^2 + 287^2 .

It is a cyclic number.

It is not a de Polignac number, because 307045 - 2⁹ = 306533 is a prime.

307045 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30700 + ... + 30709.

It is an arithmetic number, because the mean of its divisors is an integer number (92115).

2³⁰⁷⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

307045 is a deficient number, since it is larger than the sum of its proper divisors (61415).

307045 is an equidigital number, since it uses as much as digits as its factorization.

307045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61414.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 307045 is about 554.1164137616. The cubic root of 307045 is about 67.4632630456.

Adding to 307045 its reverse (540703), we get a palindrome (847748).

The spelling of 307045 in words is "three hundred seven thousand, forty-five".