345140041 has 2 divisors, whose sum is σ = 345140042. Its totient is φ = 345140040.

The previous prime is 345140027. The next prime is 345140071. The reversal of 345140041 is 140041543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288830025 + 56310016 = 16995^2 + 7504^2 .

It is a cyclic number.

It is not a de Polignac number, because 345140041 - 2²³ = 336751433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345139994 and 345140021.

It is not a weakly prime, because it can be changed into another prime (345140071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172570020 + 172570021.

It is an arithmetic number, because the mean of its divisors is an integer number (172570021).

Almost surely, 2^345140041 is an apocalyptic number.

It is an amenable number.

345140041 is a deficient number, since it is larger than the sum of its proper divisors (1).

345140041 is an equidigital number, since it uses as much as digits as its factorization.

345140041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 345140041 is about 18577.9450155285. The cubic root of 345140041 is about 701.4527929648.

Adding to 345140041 its reverse (140041543), we get a palindrome (485181584).

The spelling of 345140041 in words is "three hundred forty-five million, one hundred forty thousand, forty-one".