2109105455 has 8 divisors (see below), whose sum is σ = 2531176800. Its totient is φ = 1687117536.

The previous prime is 2109105437. The next prime is 2109105473. The reversal of 2109105455 is 5545019012.

It is an interprime number because it is at equal distance from previous prime (2109105437) and next prime (2109105473).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2109105455 - 2²⁰ = 2108056879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73961 + ... + 98429.

It is an arithmetic number, because the mean of its divisors is an integer number (316397100).

Almost surely, 2^2109105455 is an apocalyptic number.

2109105455 is a deficient number, since it is larger than the sum of its proper divisors (422071345).

2109105455 is a wasteful number, since it uses less digits than its factorization.

2109105455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41713.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 2109105455 is about 45924.9981491562. The cubic root of 2109105455 is about 1282.4273306623.

It can be divided in two parts, 2109 and 105455, that multiplied together give a triangular number (222404595 = T₂₁₀₉₀).

The spelling of 2109105455 in words is "two billion, one hundred nine million, one hundred five thousand, four hundred fifty-five".