40253123 has 4 divisors (see below), whose sum is σ = 40455600. Its totient is φ = 40050648.

The previous prime is 40253113. The next prime is 40253167. The reversal of 40253123 is 32135204.

It is a happy number.

40253123 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 is a cyclic number.

It is not a de Polignac number, because 40253123 - 2²⁰ = 39204547 is a prime.

It is a super-2 number, since 2×40253123² = 3240627822506258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40253095 and 40253104.

It is not an unprimeable number, because it can be changed into a prime (40253113) 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, 100940 + ... + 101337.

It is an arithmetic number, because the mean of its divisors is an integer number (10113900).

Almost surely, 2^40253123 is an apocalyptic number.

40253123 is a deficient number, since it is larger than the sum of its proper divisors (202477).

40253123 is a wasteful number, since it uses less digits than its factorization.

40253123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202476.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40253123 is about 6344.5348923306. The cubic root of 40253123 is about 342.7150633942.

Adding to 40253123 its reverse (32135204), we get a palindrome (72388327).

The spelling of 40253123 in words is "forty million, two hundred fifty-three thousand, one hundred twenty-three".