2281309253 has 4 divisors (see below), whose sum is σ = 2290854720. Its totient is φ = 2271763788.

The previous prime is 2281309231. The next prime is 2281309267. The reversal of 2281309253 is 3529031822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3529031822 = 2 ⋅1764515911.

It is a cyclic number.

It is not a de Polignac number, because 2281309253 - 2³⁰ = 1207567429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281359253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4772375 + ... + 4772852.

It is an arithmetic number, because the mean of its divisors is an integer number (572713680).

Almost surely, 2^2281309253 is an apocalyptic number.

It is an amenable number.

2281309253 is a deficient number, since it is larger than the sum of its proper divisors (9545467).

2281309253 is an equidigital number, since it uses as much as digits as its factorization.

2281309253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9545466.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2281309253 is about 47763.0532210829. The cubic root of 2281309253 is about 1316.4207543803.

The spelling of 2281309253 in words is "two billion, two hundred eighty-one million, three hundred nine thousand, two hundred fifty-three".