1823131066 has 4 divisors (see below), whose sum is σ = 2734696602. Its totient is φ = 911565532.

The previous prime is 1823131027. The next prime is 1823131067. The reversal of 1823131066 is 6601313281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1597680841 + 225450225 = 39971^2 + 15015^2 .

It is not an unprimeable number, because it can be changed into a prime (1823131067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455782765 + ... + 455782768.

Almost surely, 2^1823131066 is an apocalyptic number.

1823131066 is a deficient number, since it is larger than the sum of its proper divisors (911565536).

1823131066 is an equidigital number, since it uses as much as digits as its factorization.

1823131066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911565535.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1823131066 is about 42698.1389055776. The cubic root of 1823131066 is about 1221.6288969320.

The spelling of 1823131066 in words is "one billion, eight hundred twenty-three million, one hundred thirty-one thousand, sixty-six".