1258871 has 2 divisors, whose sum is σ = 1258872. Its totient is φ = 1258870.

The previous prime is 1258847. The next prime is 1258877. The reversal of 1258871 is 1788521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1258871 - 2¹⁴ = 1242487 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1258877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629435 + 629436.

It is an arithmetic number, because the mean of its divisors is an integer number (629436).

2^1258871 is an apocalyptic number.

1258871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1258871 is an equidigital number, since it uses as much as digits as its factorization.

1258871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 32.

The square root of 1258871 is about 1121.9942067587. The cubic root of 1258871 is about 107.9759605846.

The spelling of 1258871 in words is "one million, two hundred fifty-eight thousand, eight hundred seventy-one".