345147643 has 2 divisors, whose sum is σ = 345147644. Its totient is φ = 345147642.

The previous prime is 345147601. The next prime is 345147661. The reversal of 345147643 is 346741543.

It is a strong prime.

It is an emirp because it is prime and its reverse (346741543) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345147643 is a prime.

It is not a weakly prime, because it can be changed into another prime (345142643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172573821 + 172573822.

It is an arithmetic number, because the mean of its divisors is an integer number (172573822).

Almost surely, 2^345147643 is an apocalyptic number.

345147643 is a deficient number, since it is larger than the sum of its proper divisors (1).

345147643 is an equidigital number, since it uses as much as digits as its factorization.

345147643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 37.

The square root of 345147643 is about 18578.1496118424. The cubic root of 345147643 is about 701.4579429564.

The spelling of 345147643 in words is "three hundred forty-five million, one hundred forty-seven thousand, six hundred forty-three".