2142152329 has 4 divisors (see below), whose sum is σ = 2163361860. Its totient is φ = 2120942800.

The previous prime is 2142152317. The next prime is 2142152351. The reversal of 2142152329 is 9232512412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1984524304 + 157628025 = 44548^2 + 12555^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142152329 - 2²⁹ = 1605281417 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2142152329.

It is not an unprimeable number, because it can be changed into a prime (2142152399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10604614 + ... + 10604815.

It is an arithmetic number, because the mean of its divisors is an integer number (540840465).

Almost surely, 2^2142152329 is an apocalyptic number.

It is an amenable number.

2142152329 is a deficient number, since it is larger than the sum of its proper divisors (21209531).

2142152329 is a wasteful number, since it uses less digits than its factorization.

2142152329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21209530.

The product of its digits is 8640, while the sum is 31.

The square root of 2142152329 is about 46283.3915027842. The cubic root of 2142152329 is about 1289.0906254449.

The spelling of 2142152329 in words is "two billion, one hundred forty-two million, one hundred fifty-two thousand, three hundred twenty-nine".