1025321 has 8 divisors (see below), whose sum is σ = 1184544. Its totient is φ = 877120.

The previous prime is 1025303. The next prime is 1025327. The reversal of 1025321 is 1235201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1025321 - 2⁶ = 1025257 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025296 and 1025305.

It is not an unprimeable number, because it can be changed into a prime (1025327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2555 + ... + 2928.

It is an arithmetic number, because the mean of its divisors is an integer number (148068).

2^1025321 is an apocalyptic number.

1025321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1025321 is a deficient number, since it is larger than the sum of its proper divisors (159223).

1025321 is a wasteful number, since it uses less digits than its factorization.

1025321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5511.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1025321 is about 1012.5813547562. The cubic root of 1025321 is about 100.8370079636.

The spelling of 1025321 in words is "one million, twenty-five thousand, three hundred twenty-one".