253130121 has 24 divisors (see below), whose sum is σ = 377066976. Its totient is φ = 163537920.

The previous prime is 253130117. The next prime is 253130149. The reversal of 253130121 is 121031352.

It is not a de Polignac number, because 253130121 - 2² = 253130117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253130094 and 253130103.

It is not an unprimeable number, because it can be changed into a prime (253130161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48201 + ... + 53193.

It is an arithmetic number, because the mean of its divisors is an integer number (15711124).

Almost surely, 2^253130121 is an apocalyptic number.

It is an amenable number.

253130121 is a deficient number, since it is larger than the sum of its proper divisors (123936855).

253130121 is a wasteful number, since it uses less digits than its factorization.

253130121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173 (or 5170 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 253130121 is about 15910.0635133867. The cubic root of 253130121 is about 632.5787648425.

Adding to 253130121 its reverse (121031352), we get a palindrome (374161473).

The spelling of 253130121 in words is "two hundred fifty-three million, one hundred thirty thousand, one hundred twenty-one".