40101143 has 4 divisors (see below), whose sum is σ = 40124448. Its totient is φ = 40077840.

The previous prime is 40101119. The next prime is 40101151. The reversal of 40101143 is 34110104.

It is a happy number.

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 40101143 - 2²⁰ = 39052567 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 (40109143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8846 + ... + 12587.

It is an arithmetic number, because the mean of its divisors is an integer number (10031112).

Almost surely, 2^40101143 is an apocalyptic number.

40101143 is a deficient number, since it is larger than the sum of its proper divisors (23305).

40101143 is a wasteful number, since it uses less digits than its factorization.

40101143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23304.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 40101143 is about 6332.5463282948. The cubic root of 40101143 is about 342.2832002145.

Adding to 40101143 its reverse (34110104), we get a palindrome (74211247).

The spelling of 40101143 in words is "forty million, one hundred one thousand, one hundred forty-three".