1025603 has 8 divisors (see below), whose sum is σ = 1075248. Its totient is φ = 977184.

The previous prime is 1025579. The next prime is 1025611. The reversal of 1025603 is 3065201.

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 1025603 - 2⁸ = 1025347 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1025623) 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, 1700 + ... + 2222.

It is an arithmetic number, because the mean of its divisors is an integer number (134406).

2^1025603 is an apocalyptic number.

1025603 is a deficient number, since it is larger than the sum of its proper divisors (49645).

1025603 is an equidigital number, since it uses as much as digits as its factorization.

1025603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1025603 is about 1012.7205932536. The cubic root of 1025603 is about 100.8462517125.

The spelling of 1025603 in words is "one million, twenty-five thousand, six hundred three".