2131132429 has 4 divisors (see below), whose sum is σ = 2135207776. Its totient is φ = 2127057084.

The previous prime is 2131132411. The next prime is 2131132433. The reversal of 2131132429 is 9242311312.

It is a happy number.

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 not a de Polignac number, because 2131132429 - 2⁷ = 2131132301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131132397 and 2131132406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131132489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2036889 + ... + 2037934.

It is an arithmetic number, because the mean of its divisors is an integer number (533801944).

Almost surely, 2^2131132429 is an apocalyptic number.

It is an amenable number.

2131132429 is a deficient number, since it is larger than the sum of its proper divisors (4075347).

2131132429 is an equidigital number, since it uses as much as digits as its factorization.

2131132429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075346.

The product of its digits is 2592, while the sum is 28.

The square root of 2131132429 is about 46164.1898986650. The cubic root of 2131132429 is about 1286.8763292781.

The spelling of 2131132429 in words is "two billion, one hundred thirty-one million, one hundred thirty-two thousand, four hundred twenty-nine".