345173111 has 4 divisors (see below), whose sum is σ = 354502152. Its totient is φ = 335844072.

The previous prime is 345173107. The next prime is 345173131. The reversal of 345173111 is 111371543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345173111 - 2² = 345173107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345173131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4664465 + ... + 4664538.

It is an arithmetic number, because the mean of its divisors is an integer number (88625538).

Almost surely, 2^345173111 is an apocalyptic number.

345173111 is a deficient number, since it is larger than the sum of its proper divisors (9329041).

345173111 is an equidigital number, since it uses as much as digits as its factorization.

345173111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9329040.

The product of its digits is 1260, while the sum is 26.

The square root of 345173111 is about 18578.8350280635. The cubic root of 345173111 is about 701.4751957581.

The spelling of 345173111 in words is "three hundred forty-five million, one hundred seventy-three thousand, one hundred eleven".