345415 has 16 divisors (see below), whose sum is σ = 483840. Its totient is φ = 231840.

The previous prime is 345413. The next prime is 345431. The reversal of 345415 is 514543.

It is not a de Polignac number, because 345415 - 2¹ = 345413 is a prime.

345415 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2416 + ... + 2554.

It is an arithmetic number, because the mean of its divisors is an integer number (30240).

2³⁴⁵⁴¹⁵ is an apocalyptic number.

345415 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

345415 is a deficient number, since it is larger than the sum of its proper divisors (138425).

345415 is a wasteful number, since it uses less digits than its factorization.

345415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222.

The product of its digits is 1200, while the sum is 22.

The square root of 345415 is about 587.7201715102. The cubic root of 345415 is about 70.1639016469.

Adding to 345415 its reverse (514543), we get a palindrome (859958).

The spelling of 345415 in words is "three hundred forty-five thousand, four hundred fifteen".