253022123 has 4 divisors (see below), whose sum is σ = 253727280. Its totient is φ = 252316968.

The previous prime is 253022113. The next prime is 253022153. The reversal of 253022123 is 321220352.

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 253022123 - 2⁶ = 253022059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253022095 and 253022104.

It is not an unprimeable number, because it can be changed into a prime (253022113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352040 + ... + 352757.

It is an arithmetic number, because the mean of its divisors is an integer number (63431820).

Almost surely, 2^253022123 is an apocalyptic number.

253022123 is a deficient number, since it is larger than the sum of its proper divisors (705157).

253022123 is an equidigital number, since it uses as much as digits as its factorization.

253022123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705156.

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

The square root of 253022123 is about 15906.6691359316. The cubic root of 253022123 is about 632.4887887737.

Adding to 253022123 its reverse (321220352), we get a palindrome (574242475).

The spelling of 253022123 in words is "two hundred fifty-three million, twenty-two thousand, one hundred twenty-three".