2131972783 has 2 divisors, whose sum is σ = 2131972784. Its totient is φ = 2131972782.

The previous prime is 2131972727. The next prime is 2131972789. The reversal of 2131972783 is 3872791312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131972783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131972789) 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 as a sum of consecutive naturals, namely, 1065986391 + 1065986392.

It is an arithmetic number, because the mean of its divisors is an integer number (1065986392).

Almost surely, 2^2131972783 is an apocalyptic number.

2131972783 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131972783 is an equidigital number, since it uses as much as digits as its factorization.

2131972783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 2131972783 is about 46173.2907967366. The cubic root of 2131972783 is about 1287.0454552543.

The spelling of 2131972783 in words is "two billion, one hundred thirty-one million, nine hundred seventy-two thousand, seven hundred eighty-three".