1025605 has 8 divisors (see below), whose sum is σ = 1406592. Its totient is φ = 703248.

The previous prime is 1025579. The next prime is 1025611. The reversal of 1025605 is 5065201.

1025605 = T₆₃₈ + T₆₃₉ + ... + T₆₄₂.

It is a happy number.

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

It is not a de Polignac number, because 1025605 - 2⁷ = 1025477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 14617 + ... + 14686.

It is an arithmetic number, because the mean of its divisors is an integer number (175824).

2^1025605 is an apocalyptic number.

It is an amenable number.

1025605 is a deficient number, since it is larger than the sum of its proper divisors (380987).

1025605 is an equidigital number, since it uses as much as digits as its factorization.

1025605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29315.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1025605 is about 1012.7215806923. The cubic root of 1025605 is about 100.8463172650.

The spelling of 1025605 in words is "one million, twenty-five thousand, six hundred five".