40108131 has 36 divisors (see below), whose sum is σ = 68662672. Its totient is φ = 22099392.

The previous prime is 40108129. The next prime is 40108153. The reversal of 40108131 is 13180104.

It is not a de Polignac number, because 40108131 - 2¹ = 40108129 is a prime.

It is a super-2 number, since 2×40108131² = 3217324344626322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40108181) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 52605 + ... + 53361.

Almost surely, 2^40108131 is an apocalyptic number.

40108131 is a deficient number, since it is larger than the sum of its proper divisors (28554541).

40108131 is a wasteful number, since it uses less digits than its factorization.

40108131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 40108131 is about 6333.0980570334. The cubic root of 40108131 is about 342.3030810782.

Adding to 40108131 its reverse (13180104), we get a palindrome (53288235).

The spelling of 40108131 in words is "forty million, one hundred eight thousand, one hundred thirty-one".