2171434053 has 16 divisors (see below), whose sum is σ = 2981606400. Its totient is φ = 1405063920.

The previous prime is 2171434039. The next prime is 2171434063. The reversal of 2171434053 is 3504341712.

It is a happy number.

It is not a de Polignac number, because 2171434053 - 2¹⁶ = 2171368517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2171434053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171434063) 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, 63663 + ... + 91628.

It is an arithmetic number, because the mean of its divisors is an integer number (186350400).

Almost surely, 2^2171434053 is an apocalyptic number.

It is an amenable number.

2171434053 is a deficient number, since it is larger than the sum of its proper divisors (810172347).

2171434053 is a wasteful number, since it uses less digits than its factorization.

2171434053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155432.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 2171434053 is about 46598.6486177443. The cubic root of 2171434053 is about 1294.9377196585.

Adding to 2171434053 its reverse (3504341712), we get a palindrome (5675775765).

The spelling of 2171434053 in words is "two billion, one hundred seventy-one million, four hundred thirty-four thousand, fifty-three".