1061825 has 6 divisors (see below), whose sum is σ = 1316694. Its totient is φ = 849440.

The previous prime is 1061807. The next prime is 1061831. The reversal of 1061825 is 5281601.

1061825 = 80² + 81² + ... + 154².

It can be written as a sum of positive squares in 3 ways, for example, as 5041 + 1056784 = 71^2 + 1028^2 .

It is not a de Polignac number, because 1061825 - 2⁸ = 1061569 is a prime.

It is a super-2 number, since 2×1061825² = 2254944661250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1061825.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21212 + ... + 21261.

It is an arithmetic number, because the mean of its divisors is an integer number (219449).

2^1061825 is an apocalyptic number.

It is an amenable number.

1061825 is a deficient number, since it is larger than the sum of its proper divisors (254869).

1061825 is an equidigital number, since it uses as much as digits as its factorization.

1061825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42483 (or 42478 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1061825 is about 1030.4489312916. The cubic root of 1061825 is about 102.0197642080.

The spelling of 1061825 in words is "one million, sixty-one thousand, eight hundred twenty-five".