1258859 has 12 divisors (see below), whose sum is σ = 1529424. Its totient is φ = 1031184.

The previous prime is 1258847. The next prime is 1258871. The reversal of 1258859 is 9588521.

It is an interprime number because it is at equal distance from previous prime (1258847) and next prime (1258871).

It is not a de Polignac number, because 1258859 - 2²⁰ = 210283 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1258819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 569 + ... + 1685.

It is an arithmetic number, because the mean of its divisors is an integer number (127452).

2^1258859 is an apocalyptic number.

1258859 is a deficient number, since it is larger than the sum of its proper divisors (270565).

1258859 is a wasteful number, since it uses less digits than its factorization.

1258859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1147 counting only the distinct ones).

The product of its digits is 28800, while the sum is 38.

The square root of 1258859 is about 1121.9888591247. The cubic root of 1258859 is about 107.9756174953.

The spelling of 1258859 in words is "one million, two hundred fifty-eight thousand, eight hundred fifty-nine".