40531153 has 4 divisors (see below), whose sum is σ = 43648948. Its totient is φ = 37413360.

The previous prime is 40531121. The next prime is 40531157. The reversal of 40531153 is 35113504.

It is a happy number.

40531153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 14653584 + 25877569 = 3828^2 + 5087^2 .

It is a cyclic number.

It is not a de Polignac number, because 40531153 - 2⁵ = 40531121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40531157) 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 3 ways as a sum of consecutive naturals, for example, 1558878 + ... + 1558903.

It is an arithmetic number, because the mean of its divisors is an integer number (10912237).

Almost surely, 2^40531153 is an apocalyptic number.

It is an amenable number.

40531153 is a deficient number, since it is larger than the sum of its proper divisors (3117795).

40531153 is a wasteful number, since it uses less digits than its factorization.

40531153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117794.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 40531153 is about 6366.4081710176. The cubic root of 40531153 is about 343.5023027488.

Adding to 40531153 its reverse (35113504), we get a palindrome (75644657).

The spelling of 40531153 in words is "forty million, five hundred thirty-one thousand, one hundred fifty-three".