100321625 has 8 divisors (see below), whose sum is σ = 125201544. Its totient is φ = 80257200.

The previous prime is 100321621. The next prime is 100321631. The reversal of 100321625 is 526123001.

It can be written as a sum of positive squares in 4 ways, for example, as 1369 + 100320256 = 37^2 + 10016^2 .

It is not a de Polignac number, because 100321625 - 2² = 100321621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100321597 and 100321606.

It is not an unprimeable number, because it can be changed into a prime (100321621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401162 + ... + 401411.

It is an arithmetic number, because the mean of its divisors is an integer number (15650193).

Almost surely, 2^100321625 is an apocalyptic number.

It is an amenable number.

100321625 is a deficient number, since it is larger than the sum of its proper divisors (24879919).

100321625 is an frugal number, since it uses more digits than its factorization.

100321625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802588 (or 802578 counting only the distinct ones).

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

The square root of 100321625 is about 10016.0683404218. The cubic root of 100321625 is about 464.6559678285.

Adding to 100321625 its reverse (526123001), we get a palindrome (626444626).

The spelling of 100321625 in words is "one hundred million, three hundred twenty-one thousand, six hundred twenty-five".