345915 has 12 divisors (see below), whose sum is σ = 599664. Its totient is φ = 184464.

The previous prime is 345907. The next prime is 345923. The reversal of 345915 is 519543.

It is an interprime number because it is at equal distance from previous prime (345907) and next prime (345923).

It is not a de Polignac number, because 345915 - 2³ = 345907 is a prime.

345915 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 345915.

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 11 ways as a sum of consecutive naturals, for example, 3799 + ... + 3888.

It is an arithmetic number, because the mean of its divisors is an integer number (49972).

2³⁴⁵⁹¹⁵ is an apocalyptic number.

345915 is a deficient number, since it is larger than the sum of its proper divisors (253749).

345915 is a wasteful number, since it uses less digits than its factorization.

345915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7698 (or 7695 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 345915 is about 588.1453901885. The cubic root of 345915 is about 70.1977402053.

It can be divided in two parts, 34591 and 5, that added together give a square (34596 = 186²).

The spelling of 345915 in words is "three hundred forty-five thousand, nine hundred fifteen".