40100131 has 6 divisors (see below), whose sum is σ = 40511396. Its totient is φ = 39693000.

The previous prime is 40100129. The next prime is 40100147. The reversal of 40100131 is 13100104.

It is a happy number.

It is not a de Polignac number, because 40100131 - 2¹ = 40100129 is a prime.

It is a super-2 number, since 2×40100131² = 3216041012434322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40100191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8236 + ... + 12166.

Almost surely, 2^40100131 is an apocalyptic number.

40100131 is a deficient number, since it is larger than the sum of its proper divisors (411265).

40100131 is an equidigital number, since it uses as much as digits as its factorization.

40100131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133 (or 4032 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 40100131 is about 6332.4664231246. The cubic root of 40100131 is about 342.2803208825.

Adding to 40100131 its reverse (13100104), we get a palindrome (53200235).

The spelling of 40100131 in words is "forty million, one hundred thousand, one hundred thirty-one".