2127655105 has 4 divisors (see below), whose sum is σ = 2553186132. Its totient is φ = 1702124080.

The previous prime is 2127655099. The next prime is 2127655139. The reversal of 2127655105 is 5015567212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1402053136 + 725601969 = 37444^2 + 26937^2 .

It is not a de Polignac number, because 2127655105 - 2⁹ = 2127654593 is a prime.

It is a super-2 number, since 2×2127655105² = 9053832491665122050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212765506 + ... + 212765515.

It is an arithmetic number, because the mean of its divisors is an integer number (638296533).

Almost surely, 2^2127655105 is an apocalyptic number.

It is an amenable number.

2127655105 is a deficient number, since it is larger than the sum of its proper divisors (425531027).

2127655105 is an equidigital number, since it uses as much as digits as its factorization.

2127655105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425531026.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 2127655105 is about 46126.5119535393. The cubic root of 2127655105 is about 1286.1760252282.

The spelling of 2127655105 in words is "two billion, one hundred twenty-seven million, six hundred fifty-five thousand, one hundred five".