2128142629 has 4 divisors (see below), whose sum is σ = 2129602720. Its totient is φ = 2126682540.

The previous prime is 2128142617. The next prime is 2128142651. The reversal of 2128142629 is 9262418212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2128142629 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 (2128142729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727857 + ... + 730774.

It is an arithmetic number, because the mean of its divisors is an integer number (532400680).

Almost surely, 2^2128142629 is an apocalyptic number.

It is an amenable number.

2128142629 is a deficient number, since it is larger than the sum of its proper divisors (1460091).

2128142629 is a wasteful number, since it uses less digits than its factorization.

2128142629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460090.

The product of its digits is 27648, while the sum is 37.

The square root of 2128142629 is about 46131.7962906280. The cubic root of 2128142629 is about 1286.2742544622.

The spelling of 2128142629 in words is "two billion, one hundred twenty-eight million, one hundred forty-two thousand, six hundred twenty-nine".