345081 has 8 divisors (see below), whose sum is σ = 501984. Its totient is φ = 209120.

The previous prime is 345067. The next prime is 345089. The reversal of 345081 is 180543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345081 - 2⁶ = 345017 is a prime.

It is a super-2 number, since 2×345081² = 238161793122, which contains 22 as substring.

It is a Curzon number.

345081 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 345081.

It is not an unprimeable number, because it can be changed into a prime (345089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5196 + ... + 5261.

It is an arithmetic number, because the mean of its divisors is an integer number (62748).

2³⁴⁵⁰⁸¹ is an apocalyptic number.

It is an amenable number.

345081 is a deficient number, since it is larger than the sum of its proper divisors (156903).

345081 is a wasteful number, since it uses less digits than its factorization.

345081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10471.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 345081 is about 587.4359539558. The cubic root of 345081 is about 70.1412792935.

It can be divided in two parts, 34 and 5081, that added together give a palindrome (5115).

The spelling of 345081 in words is "three hundred forty-five thousand, eighty-one".