2231782373 has 2 divisors, whose sum is σ = 2231782374. Its totient is φ = 2231782372.

The previous prime is 2231782367. The next prime is 2231782381. The reversal of 2231782373 is 3732871322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1539934564 + 691847809 = 39242^2 + 26303^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231782373 - 2¹² = 2231778277 is a prime.

It is a super-3 number, since 3×2231782373³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231782363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115891186 + 1115891187.

It is an arithmetic number, because the mean of its divisors is an integer number (1115891187).

Almost surely, 2^2231782373 is an apocalyptic number.

It is an amenable number.

2231782373 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231782373 is an equidigital number, since it uses as much as digits as its factorization.

2231782373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 38.

The square root of 2231782373 is about 47241.7439665387. The cubic root of 2231782373 is about 1306.8245394928.

The spelling of 2231782373 in words is "two billion, two hundred thirty-one million, seven hundred eighty-two thousand, three hundred seventy-three".