345644041 has 2 divisors, whose sum is σ = 345644042. Its totient is φ = 345644040.

The previous prime is 345644027. The next prime is 345644053. The reversal of 345644041 is 140446543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342990400 + 2653641 = 18520^2 + 1629^2 .

It is a cyclic number.

It is not a de Polignac number, because 345644041 - 2⁵ = 345644009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345643994 and 345644012.

It is not a weakly prime, because it can be changed into another prime (345644021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172822020 + 172822021.

It is an arithmetic number, because the mean of its divisors is an integer number (172822021).

Almost surely, 2^345644041 is an apocalyptic number.

It is an amenable number.

345644041 is a deficient number, since it is larger than the sum of its proper divisors (1).

345644041 is an equidigital number, since it uses as much as digits as its factorization.

345644041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 345644041 is about 18591.5045383638. The cubic root of 345644041 is about 701.7940653182.

The spelling of 345644041 in words is "three hundred forty-five million, six hundred forty-four thousand, forty-one".