345034331 has 2 divisors, whose sum is σ = 345034332. Its totient is φ = 345034330.

The previous prime is 345034259. The next prime is 345034337. The reversal of 345034331 is 133430543.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345034331 - 2¹⁰ = 345033307 is a prime.

It is a super-2 number, since 2×345034331² = 238097379137235122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 345034331.

It is not a weakly prime, because it can be changed into another prime (345034337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172517165 + 172517166.

It is an arithmetic number, because the mean of its divisors is an integer number (172517166).

Almost surely, 2^345034331 is an apocalyptic number.

345034331 is a deficient number, since it is larger than the sum of its proper divisors (1).

345034331 is an equidigital number, since it uses as much as digits as its factorization.

345034331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 345034331 is about 18575.0997574710. The cubic root of 345034331 is about 701.3811716540.

Adding to 345034331 its reverse (133430543), we get a palindrome (478464874).

The spelling of 345034331 in words is "three hundred forty-five million, thirty-four thousand, three hundred thirty-one".