1283064437 has 2 divisors, whose sum is σ = 1283064438. Its totient is φ = 1283064436.

The previous prime is 1283064413. The next prime is 1283064463. The reversal of 1283064437 is 7344603821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 853165681 + 429898756 = 29209^2 + 20734^2 .

It is an emirp because it is prime and its reverse (7344603821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1283064437 - 2²⁴ = 1266287221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1283064437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1283064467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641532218 + 641532219.

It is an arithmetic number, because the mean of its divisors is an integer number (641532219).

Almost surely, 2^1283064437 is an apocalyptic number.

It is an amenable number.

1283064437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283064437 is an equidigital number, since it uses as much as digits as its factorization.

1283064437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 1283064437 is about 35819.8888468404. Note that the first 4 decimals coincide. The cubic root of 1283064437 is about 1086.6328312678.

The spelling of 1283064437 in words is "one billion, two hundred eighty-three million, sixty-four thousand, four hundred thirty-seven".