1142005043 has 8 divisors (see below), whose sum is σ = 1146639312. Its totient is φ = 1137378816.

The previous prime is 1142005027. The next prime is 1142005057. The reversal of 1142005043 is 3405002411.

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

It is a cyclic number.

It is not a de Polignac number, because 1142005043 - 2⁴ = 1142005027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142005643) 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, 597896 + ... + 599802.

It is an arithmetic number, because the mean of its divisors is an integer number (143329914).

Almost surely, 2^1142005043 is an apocalyptic number.

1142005043 is a deficient number, since it is larger than the sum of its proper divisors (4634269).

1142005043 is a wasteful number, since it uses less digits than its factorization.

1142005043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1142005043 is about 33793.5651123110. The cubic root of 1142005043 is about 1045.2560113885.

Adding to 1142005043 its reverse (3405002411), we get a palindrome (4547007454).

The spelling of 1142005043 in words is "one billion, one hundred forty-two million, five thousand, forty-three".