345574 has 4 divisors (see below), whose sum is σ = 518364. Its totient is φ = 172786.

The previous prime is 345571. The next prime is 345577. The reversal of 345574 is 475543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 475543 = 307 ⋅1549.

It is an interprime number because it is at equal distance from previous prime (345571) and next prime (345577).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86392 + ... + 86395.

It is an arithmetic number, because the mean of its divisors is an integer number (129591).

2³⁴⁵⁵⁷⁴ is an apocalyptic number.

345574 is a deficient number, since it is larger than the sum of its proper divisors (172790).

345574 is a wasteful number, since it uses less digits than its factorization.

345574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172789.

The product of its digits is 8400, while the sum is 28.

The square root of 345574 is about 587.8554244030. The cubic root of 345574 is about 70.1746658475.

It can be divided in two parts, 345 and 574, that added together give a palindrome (919).

The spelling of 345574 in words is "three hundred forty-five thousand, five hundred seventy-four".