1287414941 has 2 divisors, whose sum is σ = 1287414942. Its totient is φ = 1287414940.

The previous prime is 1287414923. The next prime is 1287414971. The reversal of 1287414941 is 1494147821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1210344100 + 77070841 = 34790^2 + 8779^2 .

It is a cyclic number.

It is not a de Polignac number, because 1287414941 - 2¹⁴ = 1287398557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1287414971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643707470 + 643707471.

It is an arithmetic number, because the mean of its divisors is an integer number (643707471).

Almost surely, 2^1287414941 is an apocalyptic number.

It is an amenable number.

1287414941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1287414941 is an equidigital number, since it uses as much as digits as its factorization.

1287414941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 41.

The square root of 1287414941 is about 35880.5649481722. The cubic root of 1287414941 is about 1087.8595993339.

The spelling of 1287414941 in words is "one billion, two hundred eighty-seven million, four hundred fourteen thousand, nine hundred forty-one".