345065923 has 4 divisors (see below), whose sum is σ = 345300088. Its totient is φ = 344831760.

The previous prime is 345065909. The next prime is 345065977. The reversal of 345065923 is 329560543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329560543 = 13 ⋅25350811.

It is a cyclic number.

It is not a de Polignac number, because 345065923 - 2¹³ = 345057731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345065993) 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, 114858 + ... + 117823.

It is an arithmetic number, because the mean of its divisors is an integer number (86325022).

Almost surely, 2^345065923 is an apocalyptic number.

345065923 is a deficient number, since it is larger than the sum of its proper divisors (234165).

345065923 is a wasteful number, since it uses less digits than its factorization.

345065923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234164.

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 345065923 is about 18575.9501237487. The cubic root of 345065923 is about 701.4025775990.

The spelling of 345065923 in words is "three hundred forty-five million, sixty-five thousand, nine hundred twenty-three".