40171051 has 8 divisors (see below), whose sum is σ = 42591744. Its totient is φ = 37756800.

The previous prime is 40171049. The next prime is 40171057. The reversal of 40171051 is 15017104.

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 40171051 - 2¹ = 40171049 is a prime.

It is a super-2 number, since 2×40171051² = 3227426676889202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40171057) 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, 18541 + ... + 20593.

It is an arithmetic number, because the mean of its divisors is an integer number (5323968).

Almost surely, 2^40171051 is an apocalyptic number.

40171051 is a deficient number, since it is larger than the sum of its proper divisors (2420693).

40171051 is a wasteful number, since it uses less digits than its factorization.

40171051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 40171051 is about 6338.0636632965. The cubic root of 40171051 is about 342.4819845959.

Adding to 40171051 its reverse (15017104), we get a palindrome (55188155).

The spelling of 40171051 in words is "forty million, one hundred seventy-one thousand, fifty-one".