1426665403 has 2 divisors, whose sum is σ = 1426665404. Its totient is φ = 1426665402.

The previous prime is 1426665379. The next prime is 1426665419. The reversal of 1426665403 is 3045666241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1426665403 is a prime.

It is not a weakly prime, because it can be changed into another prime (1426665473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713332701 + 713332702.

It is an arithmetic number, because the mean of its divisors is an integer number (713332702).

Almost surely, 2^1426665403 is an apocalyptic number.

1426665403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1426665403 is an equidigital number, since it uses as much as digits as its factorization.

1426665403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 1426665403 is about 37771.2245366761. The cubic root of 1426665403 is about 1125.7467708204.

The spelling of 1426665403 in words is "one billion, four hundred twenty-six million, six hundred sixty-five thousand, four hundred three".