345945599 has 4 divisors (see below), whose sum is σ = 360986736. Its totient is φ = 330904464.

The previous prime is 345945557. The next prime is 345945629. The reversal of 345945599 is 995549543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 995549543 = 3259 ⋅305477.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345945599 is a prime.

It is a super-4 number, since 4×345945599⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345945599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345945539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7520534 + ... + 7520579.

It is an arithmetic number, because the mean of its divisors is an integer number (90246684).

Almost surely, 2^345945599 is an apocalyptic number.

345945599 is a deficient number, since it is larger than the sum of its proper divisors (15041137).

345945599 is a wasteful number, since it uses less digits than its factorization.

345945599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15041136.

The product of its digits is 4374000, while the sum is 53.

The square root of 345945599 is about 18599.6128723154. The cubic root of 345945599 is about 701.9980999832.

The spelling of 345945599 in words is "three hundred forty-five million, nine hundred forty-five thousand, five hundred ninety-nine".