1022725 has 12 divisors (see below), whose sum is σ = 1383840. Its totient is φ = 743600.

The previous prime is 1022719. The next prime is 1022729. The reversal of 1022725 is 5272201.

It is a de Polignac number, because none of the positive numbers 2^k-1022725 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022729) 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 11 ways as a sum of consecutive naturals, for example, 1585 + ... + 2134.

It is an arithmetic number, because the mean of its divisors is an integer number (115320).

2^1022725 is an apocalyptic number.

It is an amenable number.

1022725 is a deficient number, since it is larger than the sum of its proper divisors (361115).

1022725 is a wasteful number, since it uses less digits than its factorization.

1022725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740 (or 3735 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 1022725 is about 1011.2986700278. The cubic root of 1022725 is about 100.7518333010.

Adding to 1022725 its reverse (5272201), we get a palindrome (6294926).

The spelling of 1022725 in words is "one million, twenty-two thousand, seven hundred twenty-five".