1232771993 has 4 divisors (see below), whose sum is σ = 1232974848. Its totient is φ = 1232569140.

The previous prime is 1232771989. The next prime is 1232772001. The reversal of 1232771993 is 3991772321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3991772321 = 17881 ⋅223241.

It is a cyclic number.

It is not a de Polignac number, because 1232771993 - 2² = 1232771989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232771923) 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 in 3 ways as a sum of consecutive naturals, for example, 92021 + ... + 104562.

It is an arithmetic number, because the mean of its divisors is an integer number (308243712).

Almost surely, 2^1232771993 is an apocalyptic number.

It is an amenable number.

1232771993 is a deficient number, since it is larger than the sum of its proper divisors (202855).

1232771993 is an equidigital number, since it uses as much as digits as its factorization.

1232771993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202854.

The product of its digits is 142884, while the sum is 44.

The square root of 1232771993 is about 35110.8529232772. The cubic root of 1232771993 is about 1072.2455513579.

The spelling of 1232771993 in words is "one billion, two hundred thirty-two million, seven hundred seventy-one thousand, nine hundred ninety-three".