40131169 has 32 divisors (see below), whose sum is σ = 48432384. Its totient is φ = 32901120.

The previous prime is 40131163. The next prime is 40131181. The reversal of 40131169 is 96113104.

It is not a de Polignac number, because 40131169 - 2⁵ = 40131137 is a prime.

It is a super-2 number, since 2×40131169² = 3221021450613122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40131163) 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 31 ways as a sum of consecutive naturals, for example, 389572 + ... + 389674.

It is an arithmetic number, because the mean of its divisors is an integer number (1513512).

Almost surely, 2^40131169 is an apocalyptic number.

It is an amenable number.

40131169 is a deficient number, since it is larger than the sum of its proper divisors (8301215).

40131169 is a wasteful number, since it uses less digits than its factorization.

40131169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 40131169 is about 6334.9166529640. The cubic root of 40131169 is about 342.3686078494.

The spelling of 40131169 in words is "forty million, one hundred thirty-one thousand, one hundred sixty-nine".