40143311 has 8 divisors (see below), whose sum is σ = 44151744. Its totient is φ = 36266400.

The previous prime is 40143289. The next prime is 40143317. The reversal of 40143311 is 11334104.

40143311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40143311 is a prime.

It is a super-2 number, since 2×40143311² = 3222970836085442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40143311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40143317) 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 in 7 ways as a sum of consecutive naturals, for example, 32240 + ... + 33461.

It is an arithmetic number, because the mean of its divisors is an integer number (5518968).

Almost surely, 2^40143311 is an apocalyptic number.

40143311 is a deficient number, since it is larger than the sum of its proper divisors (4008433).

40143311 is a wasteful number, since it uses less digits than its factorization.

40143311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65761.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 40143311 is about 6335.8749198512. The cubic root of 40143311 is about 342.4031331371.

Adding to 40143311 its reverse (11334104), we get a palindrome (51477415).

The spelling of 40143311 in words is "forty million, one hundred forty-three thousand, three hundred eleven".