1025845 has 8 divisors (see below), whose sum is σ = 1238400. Its totient is φ = 815760.

The previous prime is 1025839. The next prime is 1025873. The reversal of 1025845 is 5485201.

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

It is not a de Polignac number, because 1025845 - 2⁹ = 1025333 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 480 + ... + 1510.

It is an arithmetic number, because the mean of its divisors is an integer number (154800).

2^1025845 is an apocalyptic number.

It is an amenable number.

1025845 is a deficient number, since it is larger than the sum of its proper divisors (212555).

1025845 is a wasteful number, since it uses less digits than its factorization.

1025845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1025845 is about 1012.8400663481. The cubic root of 1025845 is about 100.8541829405.

The spelling of 1025845 in words is "one million, twenty-five thousand, eight hundred forty-five".