253235145 has 16 divisors (see below), whose sum is σ = 429010560. Its totient is φ = 127113984.

The previous prime is 253235123. The next prime is 253235149. The reversal of 253235145 is 541532352.

253235145 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 253235145 - 2⁹ = 253234633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253235149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496285 + ... + 496794.

It is an arithmetic number, because the mean of its divisors is an integer number (26813160).

Almost surely, 2^253235145 is an apocalyptic number.

It is an amenable number.

253235145 is a deficient number, since it is larger than the sum of its proper divisors (175775415).

253235145 is a wasteful number, since it uses less digits than its factorization.

253235145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993104.

The product of its digits is 18000, while the sum is 30.

The square root of 253235145 is about 15913.3637236129. The cubic root of 253235145 is about 632.6662386497. Note that the first 3 decimals are identical.

Adding to 253235145 its reverse (541532352), we get a palindrome (794767497).

The spelling of 253235145 in words is "two hundred fifty-three million, two hundred thirty-five thousand, one hundred forty-five".