345245 has 8 divisors (see below), whose sum is σ = 428760. Its totient is φ = 266560.

The previous prime is 345229. The next prime is 345259. The reversal of 345245 is 542543.

It can be written as a sum of positive squares in 4 ways, for example, as 676 + 344569 = 26^2 + 587^2 .

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

It is not a de Polignac number, because 345245 - 2⁴ = 345229 is a prime.

It is a super-2 number, since 2×345245² = 238388220050, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁵ + 4⁶ + 2⁹ + 5³ + 4⁹ + 5⁷ .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 345245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1046 + ... + 1335.

It is an arithmetic number, because the mean of its divisors is an integer number (53595).

2³⁴⁵²⁴⁵ is an apocalyptic number.

It is an amenable number.

345245 is a deficient number, since it is larger than the sum of its proper divisors (83515).

345245 is a wasteful number, since it uses less digits than its factorization.

345245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415.

The product of its digits is 2400, while the sum is 23.

The square root of 345245 is about 587.5755270601. The cubic root of 345245 is about 70.1523890986.

Adding to 345245 its reverse (542543), we get a palindrome (887788).

The spelling of 345245 in words is "three hundred forty-five thousand, two hundred forty-five".