1142004021 has 8 divisors (see below), whose sum is σ = 1575178080. Its totient is φ = 735082992.

The previous prime is 1142003999. The next prime is 1142004023. The reversal of 1142004021 is 1204002411.

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

It is not a de Polignac number, because 1142004021 - 2⁷ = 1142003893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142004023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6563155 + ... + 6563328.

It is an arithmetic number, because the mean of its divisors is an integer number (196897260).

Almost surely, 2^1142004021 is an apocalyptic number.

It is an amenable number.

1142004021 is a deficient number, since it is larger than the sum of its proper divisors (433174059).

1142004021 is a wasteful number, since it uses less digits than its factorization.

1142004021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13126515.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1142004021 is about 33793.5499910856. The cubic root of 1142004021 is about 1045.2556995825.

Adding to 1142004021 its reverse (1204002411), we get a palindrome (2346006432).

The spelling of 1142004021 in words is "one billion, one hundred forty-two million, four thousand, twenty-one".