307120345 has 16 divisors (see below), whose sum is σ = 421486848. Its totient is φ = 210450240.

The previous prime is 307120339. The next prime is 307120393. The reversal of 307120345 is 543021703.

It is not a de Polignac number, because 307120345 - 2¹¹ = 307118297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78987 + ... + 82783.

It is an arithmetic number, because the mean of its divisors is an integer number (26342928).

Almost surely, 2^307120345 is an apocalyptic number.

307120345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

307120345 is a deficient number, since it is larger than the sum of its proper divisors (114366503).

307120345 is a wasteful number, since it uses less digits than its factorization.

307120345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6120.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 307120345 is about 17524.8493574125. The cubic root of 307120345 is about 674.6878080777.

The spelling of 307120345 in words is "three hundred seven million, one hundred twenty thousand, three hundred forty-five".