2190764293 has 2 divisors, whose sum is σ = 2190764294. Its totient is φ = 2190764292.

The previous prime is 2190764291. The next prime is 2190764297. The reversal of 2190764293 is 3924670912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1395919044 + 794845249 = 37362^2 + 28193^2 .

It is a cyclic number.

It is not a de Polignac number, because 2190764293 - 2¹ = 2190764291 is a prime.

Together with 2190764291, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2190764291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095382146 + 1095382147.

It is an arithmetic number, because the mean of its divisors is an integer number (1095382147).

Almost surely, 2^2190764293 is an apocalyptic number.

It is an amenable number.

2190764293 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190764293 is an equidigital number, since it uses as much as digits as its factorization.

2190764293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 2190764293 is about 46805.6010857675. The cubic root of 2190764293 is about 1298.7689120539.

The spelling of 2190764293 in words is "two billion, one hundred ninety million, seven hundred sixty-four thousand, two hundred ninety-three".