100530009 has 6 divisors (see below), whose sum is σ = 145210026. Its totient is φ = 67020000.

The previous prime is 100529983. The next prime is 100530049. The reversal of 100530009 is 900035001.

It can be written as a sum of positive squares in only one way, i.e., 86490000 + 14040009 = 9300^2 + 3747^2 .

It is not a de Polignac number, because 100530009 - 2⁵ = 100529977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100529973 and 100530000.

It is not an unprimeable number, because it can be changed into a prime (100530049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5584992 + ... + 5585009.

It is an arithmetic number, because the mean of its divisors is an integer number (24201671).

Almost surely, 2^100530009 is an apocalyptic number.

It is an amenable number.

100530009 is a deficient number, since it is larger than the sum of its proper divisors (44680017).

100530009 is a wasteful number, since it uses less digits than its factorization.

100530009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11170007 (or 11170004 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 100530009 is about 10026.4654290533. The cubic root of 100530009 is about 464.9774668235.

The spelling of 100530009 in words is "one hundred million, five hundred thirty thousand, nine".