2129463731 has 2 divisors, whose sum is σ = 2129463732. Its totient is φ = 2129463730.

The previous prime is 2129463727. The next prime is 2129463761. The reversal of 2129463731 is 1373649212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2129463731 - 2² = 2129463727 is a prime.

It is a super-2 number, since 2×2129463731² = 9069231563288880722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2129463761) 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, 1064731865 + 1064731866.

It is an arithmetic number, because the mean of its divisors is an integer number (1064731866).

Almost surely, 2^2129463731 is an apocalyptic number.

2129463731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2129463731 is an equidigital number, since it uses as much as digits as its factorization.

2129463731 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 2129463731 is about 46146.1128482129. The cubic root of 2129463731 is about 1286.5403625635.

The spelling of 2129463731 in words is "two billion, one hundred twenty-nine million, four hundred sixty-three thousand, seven hundred thirty-one".