100623125 has 10 divisors (see below), whose sum is σ = 125739438. Its totient is φ = 80498000.

The previous prime is 100623101. The next prime is 100623161. The reversal of 100623125 is 521326001.

It can be written as a sum of positive squares in 5 ways, for example, as 9878449 + 90744676 = 3143^2 + 9526^2 .

It is not a de Polignac number, because 100623125 - 2¹⁰ = 100622101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100623097 and 100623106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 79874 + ... + 81123.

Almost surely, 2^100623125 is an apocalyptic number.

It is an amenable number.

100623125 is a deficient number, since it is larger than the sum of its proper divisors (25116313).

100623125 is an frugal number, since it uses more digits than its factorization.

100623125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161017 (or 161002 counting only the distinct ones).

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

The square root of 100623125 is about 10031.1078650366. The cubic root of 100623125 is about 465.1209844364.

Adding to 100623125 its reverse (521326001), we get a palindrome (621949126).

The spelling of 100623125 in words is "one hundred million, six hundred twenty-three thousand, one hundred twenty-five".