40134231 has 16 divisors (see below), whose sum is σ = 61509600. Its totient is φ = 25833024.

The previous prime is 40134221. The next prime is 40134271. The reversal of 40134231 is 13243104.

40134231 is a `hidden beast` number, since 401 + 34 + 231 = 666.

40134231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40134231 - 2²¹ = 38037079 is a prime.

It is a super-2 number, since 2×40134231² = 3221512995922722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40134221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24846 + ... + 26411.

It is an arithmetic number, because the mean of its divisors is an integer number (3844350).

Almost surely, 2^40134231 is an apocalyptic number.

40134231 is a deficient number, since it is larger than the sum of its proper divisors (21375369).

40134231 is a wasteful number, since it uses less digits than its factorization.

40134231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51295 (or 51289 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40134231 is about 6335.1583247777. The cubic root of 40134231 is about 342.3773151796.

Adding to 40134231 its reverse (13243104), we get a palindrome (53377335).

The spelling of 40134231 in words is "forty million, one hundred thirty-four thousand, two hundred thirty-one".