345665015 has 8 divisors (see below), whose sum is σ = 415174128. Its totient is φ = 276281280.

The previous prime is 345665009. The next prime is 345665027. The reversal of 345665015 is 510566543.

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

It is not a de Polignac number, because 345665015 - 2¹⁶ = 345599479 is a prime.

It is a Duffinian number.

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, 25166 + ... + 36395.

It is an arithmetic number, because the mean of its divisors is an integer number (51896766).

Almost surely, 2^345665015 is an apocalyptic number.

345665015 is a deficient number, since it is larger than the sum of its proper divisors (69509113).

345665015 is a wasteful number, since it uses less digits than its factorization.

345665015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62689.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 345665015 is about 18592.0686046497. The cubic root of 345665015 is about 701.8082602020.

The spelling of 345665015 in words is "three hundred forty-five million, six hundred sixty-five thousand, fifteen".