40534131 has 16 divisors (see below), whose sum is σ = 59165568. Its totient is φ = 24480000.

The previous prime is 40534127. The next prime is 40534139. The reversal of 40534131 is 13143504.

It is not a de Polignac number, because 40534131 - 2² = 40534127 is a prime.

It is a super-2 number, since 2×40534131² = 3286031551850322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40534098 and 40534107.

It is not an unprimeable number, because it can be changed into a prime (40534139) 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 15 ways as a sum of consecutive naturals, for example, 8131 + ... + 12131.

It is an arithmetic number, because the mean of its divisors is an integer number (3697848).

Almost surely, 2^40534131 is an apocalyptic number.

40534131 is a deficient number, since it is larger than the sum of its proper divisors (18631437).

40534131 is a wasteful number, since it uses less digits than its factorization.

40534131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 40534131 is about 6366.6420505632. The cubic root of 40534131 is about 343.5107154119.

Adding to 40534131 its reverse (13143504), we get a palindrome (53677635).

The spelling of 40534131 in words is "forty million, five hundred thirty-four thousand, one hundred thirty-one".