1253875281 has 8 divisors (see below), whose sum is σ = 1692996480. Its totient is φ = 825335472.

The previous prime is 1253875279. The next prime is 1253875289. The reversal of 1253875281 is 1825783521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1253875281 - 2¹ = 1253875279 is a prime.

It is a super-2 number, since 2×1253875281² = 3144406440605657922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1253875289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2645070 + ... + 2645543.

It is an arithmetic number, because the mean of its divisors is an integer number (211624560).

Almost surely, 2^1253875281 is an apocalyptic number.

It is an amenable number.

1253875281 is a deficient number, since it is larger than the sum of its proper divisors (439121199).

1253875281 is an equidigital number, since it uses as much as digits as its factorization.

1253875281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5290695.

The product of its digits is 134400, while the sum is 42.

The square root of 1253875281 is about 35410.1013977650. The cubic root of 1253875281 is about 1078.3294019070.

The spelling of 1253875281 in words is "one billion, two hundred fifty-three million, eight hundred seventy-five thousand, two hundred eighty-one".