2106271389 has 16 divisors (see below), whose sum is σ = 2986018560. Its totient is φ = 1316044800.

The previous prime is 2106271381. The next prime is 2106271397. The reversal of 2106271389 is 9831726012.

It is an interprime number because it is at equal distance from previous prime (2106271381) and next prime (2106271397).

It is not a de Polignac number, because 2106271389 - 2³ = 2106271381 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106271381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74212 + ... + 98589.

It is an arithmetic number, because the mean of its divisors is an integer number (186626160).

Almost surely, 2^2106271389 is an apocalyptic number.

It is an amenable number.

2106271389 is a deficient number, since it is larger than the sum of its proper divisors (879747171).

2106271389 is a wasteful number, since it uses less digits than its factorization.

2106271389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173060.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2106271389 is about 45894.1324027375. The cubic root of 2106271389 is about 1281.8526616206.

The spelling of 2106271389 in words is "two billion, one hundred six million, two hundred seventy-one thousand, three hundred eighty-nine".