40850143 has 4 divisors (see below), whose sum is σ = 41409808. Its totient is φ = 40290480.

The previous prime is 40850137. The next prime is 40850153. The reversal of 40850143 is 34105804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40850143 - 2⁵ = 40850111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40850113) 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 in 3 ways as a sum of consecutive naturals, for example, 279723 + ... + 279868.

It is an arithmetic number, because the mean of its divisors is an integer number (10352452).

Almost surely, 2^40850143 is an apocalyptic number.

40850143 is a deficient number, since it is larger than the sum of its proper divisors (559665).

40850143 is an equidigital number, since it uses as much as digits as its factorization.

40850143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559664.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40850143 is about 6391.4116594067. The cubic root of 40850143 is about 344.4010977441.

Adding to 40850143 its reverse (34105804), we get a palindrome (74955947).

The spelling of 40850143 in words is "forty million, eight hundred fifty thousand, one hundred forty-three".