240045123 has 4 divisors (see below), whose sum is σ = 320060168. Its totient is φ = 160030080.

The previous prime is 240045103. The next prime is 240045133. The reversal of 240045123 is 321540042.

240045123 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 not a de Polignac number, because 240045123 - 2⁹ = 240044611 is a prime.

It is a super-2 number, since 2×240045123² = 115243322152170258, which contains 22 as substring.

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 240045123.

It is not an unprimeable number, because it can be changed into a prime (240045103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40007518 + ... + 40007523.

It is an arithmetic number, because the mean of its divisors is an integer number (80015042).

Almost surely, 2^240045123 is an apocalyptic number.

240045123 is a deficient number, since it is larger than the sum of its proper divisors (80015045).

240045123 is an equidigital number, since it uses as much as digits as its factorization.

240045123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80015044.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 240045123 is about 15493.3896549464. The cubic root of 240045123 is about 621.4854453203.

Adding to 240045123 its reverse (321540042), we get a palindrome (561585165).

The spelling of 240045123 in words is "two hundred forty million, forty-five thousand, one hundred twenty-three".