345504041 has 2 divisors, whose sum is σ = 345504042. Its totient is φ = 345504040.

The previous prime is 345504023. The next prime is 345504043. The reversal of 345504041 is 140405543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 332515225 + 12988816 = 18235^2 + 3604^2 .

It is an emirp because it is prime and its reverse (140405543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345504041 - 2¹⁰ = 345503017 is a prime.

Together with 345504043, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345504041.

It is not a weakly prime, because it can be changed into another prime (345504043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172752020 + 172752021.

It is an arithmetic number, because the mean of its divisors is an integer number (172752021).

Almost surely, 2^345504041 is an apocalyptic number.

It is an amenable number.

345504041 is a deficient number, since it is larger than the sum of its proper divisors (1).

345504041 is an equidigital number, since it uses as much as digits as its factorization.

345504041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 345504041 is about 18587.7389964460. The cubic root of 345504041 is about 701.6993007379.

Adding to 345504041 its reverse (140405543), we get a palindrome (485909584).

The spelling of 345504041 in words is "three hundred forty-five million, five hundred four thousand, forty-one".