1142005064 has 8 divisors (see below), whose sum is σ = 2141259510. Its totient is φ = 571002528.

The previous prime is 1142005057. The next prime is 1142005079. The reversal of 1142005064 is 4605002411.

It can be written as a sum of positive squares in only one way, i.e., 1139602564 + 2402500 = 33758^2 + 1550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71375309 + ... + 71375324.

Almost surely, 2^1142005064 is an apocalyptic number.

It is an amenable number.

1142005064 is a deficient number, since it is larger than the sum of its proper divisors (999254446).

1142005064 is a wasteful number, since it uses less digits than its factorization.

1142005064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142750639 (or 142750635 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1142005064 is about 33793.5654230210. The cubic root of 1142005064 is about 1045.2560177955.

Adding to 1142005064 its reverse (4605002411), we get a palindrome (5747007475).

The spelling of 1142005064 in words is "one billion, one hundred forty-two million, five thousand, sixty-four".