307049 has 4 divisors (see below), whose sum is σ = 314580. Its totient is φ = 299520.

The previous prime is 307033. The next prime is 307067. The reversal of 307049 is 940703.

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 71824 + 235225 = 268^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 307049 - 2⁴ = 307033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (307009) by changing a digit.

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, 3704 + ... + 3785.

It is an arithmetic number, because the mean of its divisors is an integer number (78645).

2³⁰⁷⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

307049 is a deficient number, since it is larger than the sum of its proper divisors (7531).

307049 is an equidigital number, since it uses as much as digits as its factorization.

307049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7530.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 307049 is about 554.1200230997. The cubic root of 307049 is about 67.4635560015.

The spelling of 307049 in words is "three hundred seven thousand, forty-nine".