2105171492 has 6 divisors (see below), whose sum is σ = 3684050118. Its totient is φ = 1052585744.

The previous prime is 2105171491. The next prime is 2105171521. The reversal of 2105171492 is 2941715012.

It can be written as a sum of positive squares in only one way, i.e., 1087944256 + 1017227236 = 32984^2 + 31894^2 .

It is not an unprimeable number, because it can be changed into a prime (2105171491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263146433 + ... + 263146440.

It is an arithmetic number, because the mean of its divisors is an integer number (614008353).

Almost surely, 2^2105171492 is an apocalyptic number.

It is an amenable number.

2105171492 is a deficient number, since it is larger than the sum of its proper divisors (1578878626).

2105171492 is a wasteful number, since it uses less digits than its factorization.

2105171492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526292877 (or 526292875 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 2105171492 is about 45882.1478573094. The cubic root of 2105171492 is about 1281.6294945280.

The spelling of 2105171492 in words is "two billion, one hundred five million, one hundred seventy-one thousand, four hundred ninety-two".