345665147 has 8 divisors (see below), whose sum is σ = 350926944. Its totient is φ = 340417728.

The previous prime is 345665143. The next prime is 345665153. The reversal of 345665147 is 741566543.

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

It is a cyclic number.

It is not a de Polignac number, because 345665147 - 2² = 345665143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345665141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51053 + ... + 57425.

It is an arithmetic number, because the mean of its divisors is an integer number (43865868).

Almost surely, 2^345665147 is an apocalyptic number.

345665147 is a deficient number, since it is larger than the sum of its proper divisors (5261797).

345665147 is an equidigital number, since it uses as much as digits as its factorization.

345665147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7189.

The product of its digits is 302400, while the sum is 41.

The square root of 345665147 is about 18592.0721545502. The cubic root of 345665147 is about 701.8083495358.

The spelling of 345665147 in words is "three hundred forty-five million, six hundred sixty-five thousand, one hundred forty-seven".