1283136479 has 2 divisors, whose sum is σ = 1283136480. Its totient is φ = 1283136478.

The previous prime is 1283136461. The next prime is 1283136487. The reversal of 1283136479 is 9746313821.

It is a strong prime.

It is an emirp because it is prime and its reverse (9746313821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1283136479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1283136409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641568239 + 641568240.

It is an arithmetic number, because the mean of its divisors is an integer number (641568240).

Almost surely, 2^1283136479 is an apocalyptic number.

1283136479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283136479 is an equidigital number, since it uses as much as digits as its factorization.

1283136479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 1283136479 is about 35820.8944472357. The cubic root of 1283136479 is about 1086.6531684478.

The spelling of 1283136479 in words is "one billion, two hundred eighty-three million, one hundred thirty-six thousand, four hundred seventy-nine".