349145 has 4 divisors (see below), whose sum is σ = 418980. Its totient is φ = 279312.

The previous prime is 349133. The next prime is 349171. The reversal of 349145 is 541943.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48841 + 300304 = 221^2 + 548^2 .

It is a cyclic number.

It is not a de Polignac number, because 349145 - 2⁶ = 349081 is a prime.

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 349145.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 34910 + ... + 34919.

It is an arithmetic number, because the mean of its divisors is an integer number (104745).

2³⁴⁹¹⁴⁵ is an apocalyptic number.

It is an amenable number.

349145 is a deficient number, since it is larger than the sum of its proper divisors (69835).

349145 is an equidigital number, since it uses as much as digits as its factorization.

349145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69834.

The product of its digits is 2160, while the sum is 26.

The square root of 349145 is about 590.8849295760. The cubic root of 349145 is about 70.4155553824.

It can be divided in two parts, 349 and 145, that multiplied together give a palindrome (50605).

The spelling of 349145 in words is "three hundred forty-nine thousand, one hundred forty-five".