1287413227 has 2 divisors, whose sum is σ = 1287413228. Its totient is φ = 1287413226.

The previous prime is 1287413221. The next prime is 1287413263. The reversal of 1287413227 is 7223147821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1287413227 - 2³ = 1287413219 is a prime.

It is not a weakly prime, because it can be changed into another prime (1287413221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643706613 + 643706614.

It is an arithmetic number, because the mean of its divisors is an integer number (643706614).

Almost surely, 2^1287413227 is an apocalyptic number.

1287413227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1287413227 is an equidigital number, since it uses as much as digits as its factorization.

1287413227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 37.

The square root of 1287413227 is about 35880.5410633675. The cubic root of 1287413227 is about 1087.8591165597.

The spelling of 1287413227 in words is "one billion, two hundred eighty-seven million, four hundred thirteen thousand, two hundred twenty-seven".