1291883053 has 2 divisors, whose sum is σ = 1291883054. Its totient is φ = 1291883052.

The previous prime is 1291883051. The next prime is 1291883081. The reversal of 1291883053 is 3503881921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 857494089 + 434388964 = 29283^2 + 20842^2 .

It is a cyclic number.

It is not a de Polignac number, because 1291883053 - 2¹ = 1291883051 is a prime.

Together with 1291883051, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1291882997 and 1291883015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1291883051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645941526 + 645941527.

It is an arithmetic number, because the mean of its divisors is an integer number (645941527).

Almost surely, 2^1291883053 is an apocalyptic number.

It is an amenable number.

1291883053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1291883053 is an equidigital number, since it uses as much as digits as its factorization.

1291883053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 1291883053 is about 35942.7746981226. The cubic root of 1291883053 is about 1089.1166574440.

The spelling of 1291883053 in words is "one billion, two hundred ninety-one million, eight hundred eighty-three thousand, fifty-three".