40131241 has 4 divisors (see below), whose sum is σ = 40387012. Its totient is φ = 39875472.

The previous prime is 40131233. The next prime is 40131253. The reversal of 40131241 is 14213104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3225616 + 36905625 = 1796^2 + 6075^2 .

It is a cyclic number.

It is not a de Polignac number, because 40131241 - 2³ = 40131233 is a prime.

It is a super-2 number, since 2×40131241² = 3221033008400162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40131281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127650 + ... + 127963.

It is an arithmetic number, because the mean of its divisors is an integer number (10096753).

Almost surely, 2^40131241 is an apocalyptic number.

It is an amenable number.

40131241 is a deficient number, since it is larger than the sum of its proper divisors (255771).

40131241 is a wasteful number, since it uses less digits than its factorization.

40131241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255770.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 40131241 is about 6334.9223357512. The cubic root of 40131241 is about 342.3688125991.

Adding to 40131241 its reverse (14213104), we get a palindrome (54344345).

The spelling of 40131241 in words is "forty million, one hundred thirty-one thousand, two hundred forty-one".