405342103 has 2 divisors, whose sum is σ = 405342104. Its totient is φ = 405342102.

The previous prime is 405342083. The next prime is 405342107. The reversal of 405342103 is 301243504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 405342103 - 2⁵ = 405342071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405342107) 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, 202671051 + 202671052.

It is an arithmetic number, because the mean of its divisors is an integer number (202671052).

Almost surely, 2^405342103 is an apocalyptic number.

405342103 is a deficient number, since it is larger than the sum of its proper divisors (1).

405342103 is an equidigital number, since it uses as much as digits as its factorization.

405342103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 405342103 is about 20133.1096207218. The cubic root of 405342103 is about 740.0718843000.

Adding to 405342103 its reverse (301243504), we get a palindrome (706585607).

The spelling of 405342103 in words is "four hundred five million, three hundred forty-two thousand, one hundred three".