1040505803 has 2 divisors, whose sum is σ = 1040505804. Its totient is φ = 1040505802.

The previous prime is 1040505751. The next prime is 1040505811. The reversal of 1040505803 is 3085050401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1040505803 - 2¹⁶ = 1040440267 is a prime.

It is not a weakly prime, because it can be changed into another prime (1040505863) 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, 520252901 + 520252902.

It is an arithmetic number, because the mean of its divisors is an integer number (520252902).

Almost surely, 2^1040505803 is an apocalyptic number.

1040505803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040505803 is an equidigital number, since it uses as much as digits as its factorization.

1040505803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1040505803 is about 32256.8721825288. The cubic root of 1040505803 is about 1013.3236269004.

The spelling of 1040505803 in words is "one billion, forty million, five hundred five thousand, eight hundred three".