1262056487 has 2 divisors, whose sum is σ = 1262056488. Its totient is φ = 1262056486.

The previous prime is 1262056463. The next prime is 1262056507. The reversal of 1262056487 is 7846502621.

It is a strong prime.

It is an emirp because it is prime and its reverse (7846502621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1262056487 - 2¹² = 1262052391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1262056687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631028243 + 631028244.

It is an arithmetic number, because the mean of its divisors is an integer number (631028244).

Almost surely, 2^1262056487 is an apocalyptic number.

1262056487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262056487 is an equidigital number, since it uses as much as digits as its factorization.

1262056487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 1262056487 is about 35525.4343675063. The cubic root of 1262056487 is about 1080.6695913459.

The spelling of 1262056487 in words is "one billion, two hundred sixty-two million, fifty-six thousand, four hundred eighty-seven".