1258889 has 2 divisors, whose sum is σ = 1258890. Its totient is φ = 1258888.

The previous prime is 1258877. The next prime is 1258903. The reversal of 1258889 is 9888521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 4489 = 1120^2 + 67^2 .

It is an emirp because it is prime and its reverse (9888521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1258889 - 2¹² = 1254793 is a prime.

It is a Chen prime.

It is a plaindrome in base 10 and base 16.

It is not a weakly prime, because it can be changed into another prime (1258819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629444 + 629445.

It is an arithmetic number, because the mean of its divisors is an integer number (629445).

2^1258889 is an apocalyptic number.

It is an amenable number.

1258889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1258889 is an equidigital number, since it uses as much as digits as its factorization.

1258889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 41.

The square root of 1258889 is about 1122.0022281618. The cubic root of 1258889 is about 107.9764752145.

The spelling of 1258889 in words is "one million, two hundred fifty-eight thousand, eight hundred eighty-nine".