40143203 has 4 divisors (see below), whose sum is σ = 40197408. Its totient is φ = 40089000.

The previous prime is 40143197. The next prime is 40143227. The reversal of 40143203 is 30234104.

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 40143203 - 2¹² = 40139107 is a prime.

It is a super-2 number, since 2×40143203² = 3222953494198418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40143253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25976 + ... + 27477.

It is an arithmetic number, because the mean of its divisors is an integer number (10049352).

Almost surely, 2^40143203 is an apocalyptic number.

40143203 is a deficient number, since it is larger than the sum of its proper divisors (54205).

40143203 is an equidigital number, since it uses as much as digits as its factorization.

40143203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54204.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 40143203 is about 6335.8663969500. The cubic root of 40143203 is about 342.4028260741.

Adding to 40143203 its reverse (30234104), we get a palindrome (70377307).

Subtracting from 40143203 its reverse (30234104), we obtain a palindrome (9909099).

The spelling of 40143203 in words is "forty million, one hundred forty-three thousand, two hundred three".