345880173 has 16 divisors (see below), whose sum is σ = 475554240. Its totient is φ = 223501824.

The previous prime is 345880169. The next prime is 345880193. The reversal of 345880173 is 371088543.

It is not a de Polignac number, because 345880173 - 2² = 345880169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345880153) 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, 93 + ... + 26301.

It is an arithmetic number, because the mean of its divisors is an integer number (29722140).

Almost surely, 2^345880173 is an apocalyptic number.

It is an amenable number.

345880173 is a deficient number, since it is larger than the sum of its proper divisors (129674067).

345880173 is a wasteful number, since it uses less digits than its factorization.

345880173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26348.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 345880173 is about 18597.8539891032. The cubic root of 345880173 is about 701.9538427132.

The spelling of 345880173 in words is "three hundred forty-five million, eight hundred eighty thousand, one hundred seventy-three".