345442033 has 2 divisors, whose sum is σ = 345442034. Its totient is φ = 345442032.

The previous prime is 345442003. The next prime is 345442039. The reversal of 345442033 is 330244543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 338302449 + 7139584 = 18393^2 + 2672^2 .

It is an emirp because it is prime and its reverse (330244543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345442033 - 2⁵ = 345442001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345441992 and 345442010.

It is not a weakly prime, because it can be changed into another prime (345442039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172721016 + 172721017.

It is an arithmetic number, because the mean of its divisors is an integer number (172721017).

Almost surely, 2^345442033 is an apocalyptic number.

It is an amenable number.

345442033 is a deficient number, since it is larger than the sum of its proper divisors (1).

345442033 is an equidigital number, since it uses as much as digits as its factorization.

345442033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 345442033 is about 18586.0709403575. The cubic root of 345442033 is about 701.6573199714.

Adding to 345442033 its reverse (330244543), we get a palindrome (675686576).

The spelling of 345442033 in words is "three hundred forty-five million, four hundred forty-two thousand, thirty-three".