2131632947 has 2 divisors, whose sum is σ = 2131632948. Its totient is φ = 2131632946.

The previous prime is 2131632911. The next prime is 2131632949. The reversal of 2131632947 is 7492361312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2131632947 - 2¹⁶ = 2131567411 is a prime.

Together with 2131632949, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2131632947.

It is not a weakly prime, because it can be changed into another prime (2131632949) 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 as a sum of consecutive naturals, namely, 1065816473 + 1065816474.

It is an arithmetic number, because the mean of its divisors is an integer number (1065816474).

Almost surely, 2^2131632947 is an apocalyptic number.

2131632947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131632947 is an equidigital number, since it uses as much as digits as its factorization.

2131632947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 2131632947 is about 46169.6106437990. The cubic root of 2131632947 is about 1286.9770666982.

The spelling of 2131632947 in words is "two billion, one hundred thirty-one million, six hundred thirty-two thousand, nine hundred forty-seven".