345345331 has 8 divisors (see below), whose sum is σ = 353111040. Its totient is φ = 337597128.

The previous prime is 345345323. The next prime is 345345359. The reversal of 345345331 is 133543543.

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 345345331 - 2³ = 345345323 is a prime.

It is a super-2 number, since 2×345345331² = 238526795286999122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345345293 and 345345302.

It is not an unprimeable number, because it can be changed into a prime (345345031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40630 + ... + 48388.

It is an arithmetic number, because the mean of its divisors is an integer number (44138880).

Almost surely, 2^345345331 is an apocalyptic number.

345345331 is a deficient number, since it is larger than the sum of its proper divisors (7765709).

345345331 is an equidigital number, since it uses as much as digits as its factorization.

345345331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8753.

The product of its digits is 32400, while the sum is 31.

The square root of 345345331 is about 18583.4692939720. The cubic root of 345345331 is about 701.5918405835.

Adding to 345345331 its reverse (133543543), we get a palindrome (478888874).

It can be divided in two parts, 3453 and 45331, that added together give a palindrome (48784).

The spelling of 345345331 in words is "three hundred forty-five million, three hundred forty-five thousand, three hundred thirty-one".