1012530125 has 8 divisors (see below), whose sum is σ = 1263637752. Its totient is φ = 810024000.

The previous prime is 1012530119. The next prime is 1012530133. The reversal of 1012530125 is 5210352101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 286658761 + 725871364 = 16931^2 + 26942^2 .

It is not a de Polignac number, because 1012530125 - 2¹⁴ = 1012513741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1012530097 and 1012530106.

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, 4049996 + ... + 4050245.

It is an arithmetic number, because the mean of its divisors is an integer number (157954719).

Almost surely, 2^1012530125 is an apocalyptic number.

It is an amenable number.

1012530125 is a deficient number, since it is larger than the sum of its proper divisors (251107627).

1012530125 is an frugal number, since it uses more digits than its factorization.

1012530125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8100256 (or 8100246 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1012530125 is about 31820.2785185799. The cubic root of 1012530125 is about 1004.1593838727.

Adding to 1012530125 its reverse (5210352101), we get a palindrome (6222882226).

The spelling of 1012530125 in words is "one billion, twelve million, five hundred thirty thousand, one hundred twenty-five".