40063123 has 4 divisors (see below), whose sum is σ = 41444640. Its totient is φ = 38681608.

The previous prime is 40063091. The next prime is 40063139. The reversal of 40063123 is 32136004.

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

It is a cyclic number.

It is not a de Polignac number, because 40063123 - 2⁵ = 40063091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40063123.

It is not an unprimeable number, because it can be changed into a prime (40061123) 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 3 ways as a sum of consecutive naturals, for example, 690715 + ... + 690772.

It is an arithmetic number, because the mean of its divisors is an integer number (10361160).

Almost surely, 2^40063123 is an apocalyptic number.

40063123 is a deficient number, since it is larger than the sum of its proper divisors (1381517).

40063123 is a wasteful number, since it uses less digits than its factorization.

40063123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381516.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 40063123 is about 6329.5436644358. The cubic root of 40063123 is about 342.1749928068.

Adding to 40063123 its reverse (32136004), we get a palindrome (72199127).

It can be divided in two parts, 40063 and 123, that added together give a triangular number (40186 = T₂₈₃).

The spelling of 40063123 in words is "forty million, sixty-three thousand, one hundred twenty-three".