345206173 has 16 divisors (see below), whose sum is σ = 385330176. Its totient is φ = 307105920.

The previous prime is 345206171. The next prime is 345206179. The reversal of 345206173 is 371602543.

It is a cyclic number.

It is not a de Polignac number, because 345206173 - 2¹ = 345206171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345206171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104361 + ... + 107617.

It is an arithmetic number, because the mean of its divisors is an integer number (24083136).

Almost surely, 2^345206173 is an apocalyptic number.

It is an amenable number.

345206173 is a deficient number, since it is larger than the sum of its proper divisors (40124003).

345206173 is a wasteful number, since it uses less digits than its factorization.

345206173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 345206173 is about 18579.7247826764. The cubic root of 345206173 is about 701.4975917016.

The spelling of 345206173 in words is "three hundred forty-five million, two hundred six thousand, one hundred seventy-three".