345395023 has 4 divisors (see below), whose sum is σ = 345527008. Its totient is φ = 345263040.

The previous prime is 345395021. The next prime is 345395033. The reversal of 345395023 is 320593543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320593543 = 113 ⋅2837111.

It is a cyclic number.

It is not a de Polignac number, because 345395023 - 2¹ = 345395021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345395023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345395021) 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, 61986 + ... + 67327.

It is an arithmetic number, because the mean of its divisors is an integer number (86381752).

Almost surely, 2^345395023 is an apocalyptic number.

345395023 is a deficient number, since it is larger than the sum of its proper divisors (131985).

345395023 is a wasteful number, since it uses less digits than its factorization.

345395023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131984.

The product of its (nonzero) digits is 48600, while the sum is 34.

The square root of 345395023 is about 18584.8062405827. The cubic root of 345395023 is about 701.6254898293.

The spelling of 345395023 in words is "three hundred forty-five million, three hundred ninety-five thousand, twenty-three".