345559349 has 4 divisors (see below), whose sum is σ = 345618636. Its totient is φ = 345500064.

The previous prime is 345559339. The next prime is 345559363. The reversal of 345559349 is 943955543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 943955543 = 22921 ⋅41183.

It can be written as a sum of positive squares in 2 ways, for example, as 96393124 + 249166225 = 9818^2 + 15785^2 .

It is a cyclic number.

It is not a de Polignac number, because 345559349 - 2²⁰ = 344510773 is a prime.

It is a super-2 number, since 2×345559349² = 238822527362607602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345559339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19814 + ... + 32919.

It is an arithmetic number, because the mean of its divisors is an integer number (86404659).

Almost surely, 2^345559349 is an apocalyptic number.

It is an amenable number.

345559349 is a deficient number, since it is larger than the sum of its proper divisors (59287).

345559349 is an equidigital number, since it uses as much as digits as its factorization.

345559349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59286.

The product of its digits is 1458000, while the sum is 47.

The square root of 345559349 is about 18589.2266918234. The cubic root of 345559349 is about 701.7367412207.

The spelling of 345559349 in words is "three hundred forty-five million, five hundred fifty-nine thousand, three hundred forty-nine".