7142633921 has 8 divisors (see below), whose sum is σ = 7202623680. Its totient is φ = 7082849488.

The previous prime is 7142633879. The next prime is 7142633933. The reversal of 7142633921 is 1293362417.

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 7142633921 - 2¹⁸ = 7142371777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7142633951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18935 + ... + 121011.

It is an arithmetic number, because the mean of its divisors is an integer number (900327960).

Almost surely, 2^7142633921 is an apocalyptic number.

It is an amenable number.

7142633921 is a deficient number, since it is larger than the sum of its proper divisors (59989759).

7142633921 is a wasteful number, since it uses less digits than its factorization.

7142633921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102663.

The product of its digits is 54432, while the sum is 38.

The square root of 7142633921 is about 84514.1048642178. The cubic root of 7142633921 is about 1925.8367236565.

The spelling of 7142633921 in words is "seven billion, one hundred forty-two million, six hundred thirty-three thousand, nine hundred twenty-one".