253243045 has 16 divisors (see below), whose sum is σ = 337141440. Its totient is φ = 181052800.

The previous prime is 253243027. The next prime is 253243069. The reversal of 253243045 is 540342352.

253243045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 253243045 - 2¹¹ = 253240997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35776 + ... + 42265.

It is an arithmetic number, because the mean of its divisors is an integer number (21071340).

Almost surely, 2^253243045 is an apocalyptic number.

It is an amenable number.

253243045 is a deficient number, since it is larger than the sum of its proper divisors (83898395).

253243045 is a wasteful number, since it uses less digits than its factorization.

253243045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78116.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 253243045 is about 15913.6119407255. The cubic root of 253243045 is about 632.6728175303.

Adding to 253243045 its reverse (540342352), we get a palindrome (793585397).

The spelling of 253243045 in words is "two hundred fifty-three million, two hundred forty-three thousand, forty-five".