1286105461 has 2 divisors, whose sum is σ = 1286105462. Its totient is φ = 1286105460.

The previous prime is 1286105441. The next prime is 1286105477. The reversal of 1286105461 is 1645016821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1102638436 + 183467025 = 33206^2 + 13545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1286105461 - 2⁷ = 1286105333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1286105411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643052730 + 643052731.

It is an arithmetic number, because the mean of its divisors is an integer number (643052731).

Almost surely, 2^1286105461 is an apocalyptic number.

It is an amenable number.

1286105461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1286105461 is an equidigital number, since it uses as much as digits as its factorization.

1286105461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 1286105461 is about 35862.3125439506. The cubic root of 1286105461 is about 1087.4906393874.

The spelling of 1286105461 in words is "one billion, two hundred eighty-six million, one hundred five thousand, four hundred sixty-one".