2129474293 has 2 divisors, whose sum is σ = 2129474294. Its totient is φ = 2129474292.

The previous prime is 2129474279. The next prime is 2129474317. The reversal of 2129474293 is 3924749212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1987554724 + 141919569 = 44582^2 + 11913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2129474293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2129474233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064737146 + 1064737147.

It is an arithmetic number, because the mean of its divisors is an integer number (1064737147).

Almost surely, 2^2129474293 is an apocalyptic number.

It is an amenable number.

2129474293 is a deficient number, since it is larger than the sum of its proper divisors (1).

2129474293 is an equidigital number, since it uses as much as digits as its factorization.

2129474293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 43.

The square root of 2129474293 is about 46146.2272889128. The cubic root of 2129474293 is about 1286.5424896118.

The spelling of 2129474293 in words is "two billion, one hundred twenty-nine million, four hundred seventy-four thousand, two hundred ninety-three".