1142000421 has 8 divisors (see below), whose sum is σ = 1522823904. Its totient is φ = 761255280.

The previous prime is 1142000417. The next prime is 1142000437. The reversal of 1142000421 is 1240002411.

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

It is not a de Polignac number, because 1142000421 - 2² = 1142000417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1142000421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142000411) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 43035 + ... + 64311.

It is an arithmetic number, because the mean of its divisors is an integer number (190352988).

Almost surely, 2^1142000421 is an apocalyptic number.

It is an amenable number.

1142000421 is a deficient number, since it is larger than the sum of its proper divisors (380823483).

1142000421 is a wasteful number, since it uses less digits than its factorization.

1142000421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39171.

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

The square root of 1142000421 is about 33793.4967264413. The cubic root of 1142000421 is about 1045.2546012430.

Adding to 1142000421 its reverse (1240002411), we get a palindrome (2382002832).

The spelling of 1142000421 in words is "one billion, one hundred forty-two million, four hundred twenty-one", and thus it is an aban number.