1011825 has 24 divisors (see below), whose sum is σ = 1860000. Its totient is φ = 539280.

The previous prime is 1011817. The next prime is 1011827. The reversal of 1011825 is 5281101.

It is not a de Polignac number, because 1011825 - 2³ = 1011817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011798 and 1011807.

It is not an unprimeable number, because it can be changed into a prime (1011827) 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 23 ways as a sum of consecutive naturals, for example, 75 + ... + 1424.

It is an arithmetic number, because the mean of its divisors is an integer number (77500).

2^1011825 is an apocalyptic number.

1011825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011825 is a deficient number, since it is larger than the sum of its proper divisors (848175).

1011825 is a wasteful number, since it uses less digits than its factorization.

1011825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1507 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1011825 is about 1005.8951237579. The cubic root of 1011825 is about 100.3926231201.

Adding to 1011825 its reverse (5281101), we get a palindrome (6292926).

The spelling of 1011825 in words is "one million, eleven thousand, eight hundred twenty-five".