40173143 has 8 divisors (see below), whose sum is σ = 40660848. Its totient is φ = 39688704.

The previous prime is 40173103. The next prime is 40173151. The reversal of 40173143 is 34137104.

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

It is a cyclic number.

It is not a de Polignac number, because 40173143 - 2¹² = 40169047 is a prime.

It is a super-2 number, since 2×40173143² = 3227762836996898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40173103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30821 + ... + 32097.

It is an arithmetic number, because the mean of its divisors is an integer number (5082606).

Almost surely, 2^40173143 is an apocalyptic number.

40173143 is a deficient number, since it is larger than the sum of its proper divisors (487705).

40173143 is a wasteful number, since it uses less digits than its factorization.

40173143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 40173143 is about 6338.2286957793. The cubic root of 40173143 is about 342.4879296721.

The spelling of 40173143 in words is "forty million, one hundred seventy-three thousand, one hundred forty-three".