1020125 has 8 divisors (see below), whose sum is σ = 1273272. Its totient is φ = 816000.

The previous prime is 1020113. The next prime is 1020137. The reversal of 1020125 is 5210201.

It is an interprime number because it is at equal distance from previous prime (1020113) and next prime (1020137).

It can be written as a sum of positive squares in 4 ways, for example, as 77284 + 942841 = 278^2 + 971^2 .

It is not a de Polignac number, because 1020125 - 2⁴ = 1020109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3956 + ... + 4205.

It is an arithmetic number, because the mean of its divisors is an integer number (159159).

2^1020125 is an apocalyptic number.

It is an amenable number.

1020125 is a deficient number, since it is larger than the sum of its proper divisors (253147).

1020125 is an frugal number, since it uses more digits than its factorization.

1020125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8176 (or 8166 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1020125 is about 1010.0123761618. The cubic root of 1020125 is about 100.6663828089. Note that the first 3 decimals are identical.

Adding to 1020125 its reverse (5210201), we get a palindrome (6230326).

It can be divided in two parts, 10201 and 25, that multiplied together give a square (255025 = 505²).

The spelling of 1020125 in words is "one million, twenty thousand, one hundred twenty-five".