1286412401 has 2 divisors, whose sum is σ = 1286412402. Its totient is φ = 1286412400.

The previous prime is 1286412397. The next prime is 1286412443. The reversal of 1286412401 is 1042146821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1166290801 + 120121600 = 34151^2 + 10960^2 .

It is an emirp because it is prime and its reverse (1042146821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1286412401 - 2² = 1286412397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1286402401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643206200 + 643206201.

It is an arithmetic number, because the mean of its divisors is an integer number (643206201).

Almost surely, 2^1286412401 is an apocalyptic number.

It is an amenable number.

1286412401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1286412401 is an equidigital number, since it uses as much as digits as its factorization.

1286412401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 1286412401 is about 35866.5917115078. The cubic root of 1286412401 is about 1087.5771454675.

The spelling of 1286412401 in words is "one billion, two hundred eighty-six million, four hundred twelve thousand, four hundred one".