101247625 has 8 divisors (see below), whose sum is σ = 126357192. Its totient is φ = 80998000.

The previous prime is 101247623. The next prime is 101247647. The reversal of 101247625 is 526742101.

It can be written as a sum of positive squares in 4 ways, for example, as 927369 + 100320256 = 963^2 + 10016^2 .

It is not a de Polignac number, because 101247625 - 2¹ = 101247623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101247593 and 101247602.

It is not an unprimeable number, because it can be changed into a prime (101247623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404866 + ... + 405115.

It is an arithmetic number, because the mean of its divisors is an integer number (15794649).

Almost surely, 2^101247625 is an apocalyptic number.

It is an amenable number.

101247625 is a deficient number, since it is larger than the sum of its proper divisors (25109567).

101247625 is an frugal number, since it uses more digits than its factorization.

101247625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809996 (or 809986 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 101247625 is about 10062.1878833582. The cubic root of 101247625 is about 466.0812315795.

Adding to 101247625 its reverse (526742101), we get a palindrome (627989726).

The spelling of 101247625 in words is "one hundred one million, two hundred forty-seven thousand, six hundred twenty-five".