1142923489 has 4 divisors (see below), whose sum is σ = 1148340400. Its totient is φ = 1137506580.

The previous prime is 1142923427. The next prime is 1142923499. The reversal of 1142923489 is 9843292411.

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.

It is a cyclic number.

It is not a de Polignac number, because 1142923489 - 2¹³ = 1142915297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142923499) 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 3 ways as a sum of consecutive naturals, for example, 2708139 + ... + 2708560.

It is an arithmetic number, because the mean of its divisors is an integer number (287085100).

Almost surely, 2^1142923489 is an apocalyptic number.

It is an amenable number.

1142923489 is a deficient number, since it is larger than the sum of its proper divisors (5416911).

1142923489 is an equidigital number, since it uses as much as digits as its factorization.

1142923489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5416910.

The product of its digits is 124416, while the sum is 43.

The square root of 1142923489 is about 33807.1514475858. The cubic root of 1142923489 is about 1045.5361484929.

The spelling of 1142923489 in words is "one billion, one hundred forty-two million, nine hundred twenty-three thousand, four hundred eighty-nine".