2130099409 has 3 divisors (see below), whose sum is σ = 2130145563. Its totient is φ = 2130053256.

The previous prime is 2130099407. The next prime is 2130099457. The reversal of 2130099409 is 9049900312.

The square root of 2130099409 is 46153.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1987822225 + 142277184 = 44585^2 + 11928^2 .

It is not a de Polignac number, because 2130099409 - 2¹ = 2130099407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130099401) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 23077 + ... + 69229.

It is an arithmetic number, because the mean of its divisors is an integer number (710048521).

Almost surely, 2^2130099409 is an apocalyptic number.

2130099409 is the 46153-rd square number.

2130099409 is the 23077-th centered octagonal number.

It is an amenable number.

2130099409 is a deficient number, since it is larger than the sum of its proper divisors (46154).

2130099409 is an frugal number, since it uses more digits than its factorization.

2130099409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92306 (or 46153 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The cubic root of 2130099409 is about 1286.6683672544.

The spelling of 2130099409 in words is "two billion, one hundred thirty million, ninety-nine thousand, four hundred nine".