2127107309 has 4 divisors (see below), whose sum is σ = 2127244320. Its totient is φ = 2126970300.

The previous prime is 2127107287. The next prime is 2127107327. The reversal of 2127107309 is 9037017212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2127107309 - 2¹² = 2127103213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2127107329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41729 + ... + 77430.

It is an arithmetic number, because the mean of its divisors is an integer number (531811080).

Almost surely, 2^2127107309 is an apocalyptic number.

It is an amenable number.

2127107309 is a deficient number, since it is larger than the sum of its proper divisors (137011).

2127107309 is a wasteful number, since it uses less digits than its factorization.

2127107309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137010.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 2127107309 is about 46120.5735979075. The cubic root of 2127107309 is about 1286.0656341290.

The spelling of 2127107309 in words is "two billion, one hundred twenty-seven million, one hundred seven thousand, three hundred nine".