40142803 has 2 divisors, whose sum is σ = 40142804. Its totient is φ = 40142802.

The previous prime is 40142789. The next prime is 40142821. The reversal of 40142803 is 30824104.

40142803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40142803 is a prime.

It is a super-2 number, since 2×40142803² = 3222889265393618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40142863) 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, 20071401 + 20071402.

It is an arithmetic number, because the mean of its divisors is an integer number (20071402).

Almost surely, 2^40142803 is an apocalyptic number.

40142803 is a deficient number, since it is larger than the sum of its proper divisors (1).

40142803 is an equidigital number, since it uses as much as digits as its factorization.

40142803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 40142803 is about 6335.8348305492. The cubic root of 40142803 is about 342.4016887991.

Adding to 40142803 its reverse (30824104), we get a palindrome (70966907).

The spelling of 40142803 in words is "forty million, one hundred forty-two thousand, eight hundred three".