345445039 has 2 divisors, whose sum is σ = 345445040. Its totient is φ = 345445038.

The previous prime is 345445019. The next prime is 345445057. The reversal of 345445039 is 930544543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345445039 - 2¹¹ = 345442991 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 345444989 and 345445007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345445019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172722519 + 172722520.

It is an arithmetic number, because the mean of its divisors is an integer number (172722520).

Almost surely, 2^345445039 is an apocalyptic number.

345445039 is a deficient number, since it is larger than the sum of its proper divisors (1).

345445039 is an equidigital number, since it uses as much as digits as its factorization.

345445039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 345445039 is about 18586.1518071924. The cubic root of 345445039 is about 701.6593552147.

The spelling of 345445039 in words is "three hundred forty-five million, four hundred forty-five thousand, thirty-nine".