1283760461 has 2 divisors, whose sum is σ = 1283760462. Its totient is φ = 1283760460.

The previous prime is 1283760451. The next prime is 1283760463. The reversal of 1283760461 is 1640673821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 852990436 + 430770025 = 29206^2 + 20755^2 .

It is an emirp because it is prime and its reverse (1640673821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1283760461 - 2²² = 1279566157 is a prime.

Together with 1283760463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1283760463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641880230 + 641880231.

It is an arithmetic number, because the mean of its divisors is an integer number (641880231).

Almost surely, 2^1283760461 is an apocalyptic number.

It is an amenable number.

1283760461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283760461 is an equidigital number, since it uses as much as digits as its factorization.

1283760461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1283760461 is about 35829.6031376291. The cubic root of 1283760461 is about 1086.8292843293.

The spelling of 1283760461 in words is "one billion, two hundred eighty-three million, seven hundred sixty thousand, four hundred sixty-one".