345354403 has 2 divisors, whose sum is σ = 345354404. Its totient is φ = 345354402.

The previous prime is 345354391. The next prime is 345354419. The reversal of 345354403 is 304453543.

It is a weak prime.

It is an emirp because it is prime and its reverse (304453543) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345354403 is a prime.

It is not a weakly prime, because it can be changed into another prime (345354703) 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, 172677201 + 172677202.

It is an arithmetic number, because the mean of its divisors is an integer number (172677202).

Almost surely, 2^345354403 is an apocalyptic number.

345354403 is a deficient number, since it is larger than the sum of its proper divisors (1).

345354403 is an equidigital number, since it uses as much as digits as its factorization.

345354403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 31.

The square root of 345354403 is about 18583.7133802693. The cubic root of 345354403 is about 701.5979839854.

The spelling of 345354403 in words is "three hundred forty-five million, three hundred fifty-four thousand, four hundred three".