40123563 has 8 divisors (see below), whose sum is σ = 54028176. Its totient is φ = 26484000.

The previous prime is 40123529. The next prime is 40123583. The reversal of 40123563 is 36532104.

It is a happy number.

40123563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40123563 - 2¹³ = 40115371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40123513) 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 7 ways as a sum of consecutive naturals, for example, 65908 + ... + 66513.

It is an arithmetic number, because the mean of its divisors is an integer number (6753522).

Almost surely, 2^40123563 is an apocalyptic number.

40123563 is a deficient number, since it is larger than the sum of its proper divisors (13904613).

40123563 is a wasteful number, since it uses less digits than its factorization.

40123563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132525.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 40123563 is about 6334.3163009120. The cubic root of 40123563 is about 342.3469769473.

Adding to 40123563 its reverse (36532104), we get a palindrome (76655667).

The spelling of 40123563 in words is "forty million, one hundred twenty-three thousand, five hundred sixty-three".