253240122 has 16 divisors (see below), whose sum is σ = 523945440. Its totient is φ = 81502512.

The previous prime is 253240103. The next prime is 253240123. The reversal of 253240122 is 221042352.

It is not an unprimeable number, because it can be changed into a prime (253240123) 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 7 ways as a sum of consecutive naturals, for example, 727528 + ... + 727875.

It is an arithmetic number, because the mean of its divisors is an integer number (32746590).

Almost surely, 2^253240122 is an apocalyptic number.

253240122 is an abundant number, since it is smaller than the sum of its proper divisors (270705318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253240122 is a wasteful number, since it uses less digits than its factorization.

253240122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455437.

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

The square root of 253240122 is about 15913.5201008451. The cubic root of 253240122 is about 632.6703833604.

Adding to 253240122 its reverse (221042352), we get a palindrome (474282474).

The spelling of 253240122 in words is "two hundred fifty-three million, two hundred forty thousand, one hundred twenty-two".