2139129453 has 16 divisors (see below), whose sum is σ = 2885150720. Its totient is φ = 1409679936.

The previous prime is 2139129451. The next prime is 2139129463. The reversal of 2139129453 is 3549219312.

2139129453 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2139129453 - 2¹ = 2139129451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139129451) 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, 95403 + ... + 115671.

It is an arithmetic number, because the mean of its divisors is an integer number (180321920).

Almost surely, 2^2139129453 is an apocalyptic number.

It is an amenable number.

2139129453 is a deficient number, since it is larger than the sum of its proper divisors (746021267).

2139129453 is a wasteful number, since it uses less digits than its factorization.

2139129453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20676.

The product of its digits is 58320, while the sum is 39.

The square root of 2139129453 is about 46250.7238105524. The cubic root of 2139129453 is about 1288.4839777201.

The spelling of 2139129453 in words is "two billion, one hundred thirty-nine million, one hundred twenty-nine thousand, four hundred fifty-three".