345371609 has 16 divisors (see below), whose sum is σ = 399893760. Its totient is φ = 294792960.

The previous prime is 345371599. The next prime is 345371627. The reversal of 345371609 is 906173543.

It is a happy number.

It is not a de Polignac number, because 345371609 - 2²⁴ = 328594393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345371639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84587 + ... + 88575.

It is an arithmetic number, because the mean of its divisors is an integer number (24993360).

Almost surely, 2^345371609 is an apocalyptic number.

It is an amenable number.

345371609 is a deficient number, since it is larger than the sum of its proper divisors (54522151).

345371609 is a wasteful number, since it uses less digits than its factorization.

345371609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4480.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 345371609 is about 18584.1763067401. The cubic root of 345371609 is about 701.6096352962.

The spelling of 345371609 in words is "three hundred forty-five million, three hundred seventy-one thousand, six hundred nine".