1001230625 has 10 divisors (see below), whose sum is σ = 1251138570. Its totient is φ = 800984000.

The previous prime is 1001230621. The next prime is 1001230639. The reversal of 1001230625 is 5260321001.

1001230625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 276490384 + 724740241 = 16628^2 + 26921^2 .

It is not a de Polignac number, because 1001230625 - 2² = 1001230621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001230597 and 1001230606.

It is not an unprimeable number, because it can be changed into a prime (1001230621) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 800360 + ... + 801609.

It is an arithmetic number, because the mean of its divisors is an integer number (125113857).

Almost surely, 2^1001230625 is an apocalyptic number.

It is an amenable number.

1001230625 is a deficient number, since it is larger than the sum of its proper divisors (249907945).

1001230625 is an frugal number, since it uses more digits than its factorization.

1001230625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601989 (or 1601974 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1001230625 is about 31642.2285087508. The cubic root of 1001230625 is about 1000.4100401774.

Adding to 1001230625 its reverse (5260321001), we get a palindrome (6261551626).

The spelling of 1001230625 in words is "one billion, one million, two hundred thirty thousand, six hundred twenty-five".