1040645503 has 2 divisors, whose sum is σ = 1040645504. Its totient is φ = 1040645502.

The previous prime is 1040645467. The next prime is 1040645533. The reversal of 1040645503 is 3055460401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1040645503 - 2²¹ = 1038548351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040645533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520322751 + 520322752.

It is an arithmetic number, because the mean of its divisors is an integer number (520322752).

Almost surely, 2^1040645503 is an apocalyptic number.

1040645503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040645503 is an equidigital number, since it uses as much as digits as its factorization.

1040645503 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 28.

The square root of 1040645503 is about 32259.0375398895. The cubic root of 1040645503 is about 1013.3689750299.

The spelling of 1040645503 in words is "one billion, forty million, six hundred forty-five thousand, five hundred three".