1248271133 has 2 divisors, whose sum is σ = 1248271134. Its totient is φ = 1248271132.

The previous prime is 1248271127. The next prime is 1248271159. The reversal of 1248271133 is 3311728421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 911254969 + 337016164 = 30187^2 + 18358^2 .

It is an emirp because it is prime and its reverse (3311728421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1248271133 - 2⁶ = 1248271069 is a prime.

It is a super-2 number, since 2×1248271133² = 3116361642962207378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1248271133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1248277133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624135566 + 624135567.

It is an arithmetic number, because the mean of its divisors is an integer number (624135567).

Almost surely, 2^1248271133 is an apocalyptic number.

It is an amenable number.

1248271133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248271133 is an equidigital number, since it uses as much as digits as its factorization.

1248271133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 1248271133 is about 35330.8807277713. The cubic root of 1248271133 is about 1076.7204850723.

Adding to 1248271133 its reverse (3311728421), we get a palindrome (4559999554).

The spelling of 1248271133 in words is "one billion, two hundred forty-eight million, two hundred seventy-one thousand, one hundred thirty-three".