345129 has 8 divisors (see below), whose sum is σ = 476160. Its totient is φ = 222096.

The previous prime is 345109. The next prime is 345133. The reversal of 345129 is 921543.

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

It is not a de Polignac number, because 345129 - 2⁷ = 345001 is a prime.

It is a super-2 number, since 2×345129² = 238228053282, which contains 22 as substring.

It is a Curzon number.

345129 is a lucky number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 345099 and 345108.

It is not an unprimeable number, because it can be changed into a prime (345109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1897 + ... + 2070.

It is an arithmetic number, because the mean of its divisors is an integer number (59520).

2³⁴⁵¹²⁹ is an apocalyptic number.

It is an amenable number.

345129 is a deficient number, since it is larger than the sum of its proper divisors (131031).

345129 is a wasteful number, since it uses less digits than its factorization.

345129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3999.

The product of its digits is 1080, while the sum is 24.

The square root of 345129 is about 587.4768080529. The cubic root of 345129 is about 70.1445313080.

It can be divided in two parts, 345 and 129, that added together give a palindrome (474).

The spelling of 345129 in words is "three hundred forty-five thousand, one hundred twenty-nine".