1232142999 has 8 divisors (see below), whose sum is σ = 1645345392. Its totient is φ = 820184640.

The previous prime is 1232142997. The next prime is 1232143007. The reversal of 1232142999 is 9992412321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1232142999 - 2¹ = 1232142997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1232142999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232142997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308694 + ... + 312659.

It is an arithmetic number, because the mean of its divisors is an integer number (205668174).

Almost surely, 2^1232142999 is an apocalyptic number.

1232142999 is a deficient number, since it is larger than the sum of its proper divisors (413202393).

1232142999 is an equidigital number, since it uses as much as digits as its factorization.

1232142999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622017.

The product of its digits is 69984, while the sum is 42.

The square root of 1232142999 is about 35101.8945215212. The cubic root of 1232142999 is about 1072.0631573278.

The spelling of 1232142999 in words is "one billion, two hundred thirty-two million, one hundred forty-two thousand, nine hundred ninety-nine".