2273931493 has 2 divisors, whose sum is σ = 2273931494. Its totient is φ = 2273931492.

The previous prime is 2273931481. The next prime is 2273931551. The reversal of 2273931493 is 3941393722.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2133793249 + 140138244 = 46193^2 + 11838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2273931493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2273931193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136965746 + 1136965747.

It is an arithmetic number, because the mean of its divisors is an integer number (1136965747).

Almost surely, 2^2273931493 is an apocalyptic number.

It is an amenable number.

2273931493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2273931493 is an equidigital number, since it uses as much as digits as its factorization.

2273931493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 43.

The square root of 2273931493 is about 47685.7577584754. The cubic root of 2273931493 is about 1315.0001191285. Note that the first 3 decimals are identical.

The spelling of 2273931493 in words is "two billion, two hundred seventy-three million, nine hundred thirty-one thousand, four hundred ninety-three".