13120345 has 16 divisors (see below), whose sum is σ = 19052928. Its totient is φ = 8467200.

The previous prime is 13120339. The next prime is 13120351. The reversal of 13120345 is 54302131.

It is an interprime number because it is at equal distance from previous prime (13120339) and next prime (13120351).

It is not a de Polignac number, because 13120345 - 2³ = 13120337 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10431 + ... + 11620.

It is an arithmetic number, because the mean of its divisors is an integer number (1190808).

Almost surely, 2^13120345 is an apocalyptic number.

It is an amenable number.

13120345 is a deficient number, since it is larger than the sum of its proper divisors (5932583).

13120345 is a wasteful number, since it uses less digits than its factorization.

13120345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22080.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13120345 is about 3622.2016785375. The cubic root of 13120345 is about 235.8568089050.

Adding to 13120345 its reverse (54302131), we get a palindrome (67422476).

The spelling of 13120345 in words is "thirteen million, one hundred twenty thousand, three hundred forty-five".