345182533309 has 4 divisors (see below), whose sum is σ = 354511791004. Its totient is φ = 335853275616.

The previous prime is 345182533247. The next prime is 345182533337. The reversal of 345182533309 is 903335281543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133702116409 + 211480416900 = 365653^2 + 459870^2 .

It is a cyclic number.

It is not a de Polignac number, because 345182533309 - 2¹⁷ = 345182402237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345182533369) 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, 4664628792 + ... + 4664628865.

It is an arithmetic number, because the mean of its divisors is an integer number (88627947751).

Almost surely, 2^345182533309 is an apocalyptic number.

It is an amenable number.

345182533309 is a deficient number, since it is larger than the sum of its proper divisors (9329257695).

345182533309 is an equidigital number, since it uses as much as digits as its factorization.

345182533309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9329257694.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 345182533309 in words is "three hundred forty-five billion, one hundred eighty-two million, five hundred thirty-three thousand, three hundred nine".