1025259 has 8 divisors (see below), whose sum is σ = 1439040. Its totient is φ = 647496.

The previous prime is 1025257. The next prime is 1025261. The reversal of 1025259 is 9525201.

It is an interprime number because it is at equal distance from previous prime (1025257) and next prime (1025261).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1025259 - 2¹ = 1025257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1025257) 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 in 7 ways as a sum of consecutive naturals, for example, 8937 + ... + 9050.

It is an arithmetic number, because the mean of its divisors is an integer number (179880).

2^1025259 is an apocalyptic number.

1025259 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1025259 is a deficient number, since it is larger than the sum of its proper divisors (413781).

1025259 is a wasteful number, since it uses less digits than its factorization.

1025259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18009.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1025259 is about 1012.5507394694. The cubic root of 1025259 is about 100.8349754227.

The spelling of 1025259 in words is "one million, twenty-five thousand, two hundred fifty-nine".