1340055803 has 2 divisors, whose sum is σ = 1340055804. Its totient is φ = 1340055802.

The previous prime is 1340055737. The next prime is 1340055859. The reversal of 1340055803 is 3085500431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1340055803 - 2⁸ = 1340055547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340055863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670027901 + 670027902.

It is an arithmetic number, because the mean of its divisors is an integer number (670027902).

Almost surely, 2^1340055803 is an apocalyptic number.

1340055803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340055803 is an equidigital number, since it uses as much as digits as its factorization.

1340055803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1340055803 is about 36606.7726384067. The cubic root of 1340055803 is about 1102.4890750542.

The spelling of 1340055803 in words is "one billion, three hundred forty million, fifty-five thousand, eight hundred three".