142913226821 has 8 divisors (see below), whose sum is σ = 147529853184. Its totient is φ = 138297008160.

The previous prime is 142913226769. The next prime is 142913226889. The reversal of 142913226821 is 128622319241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142913226821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142913226221) 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, 714350 + ... + 892256.

It is an arithmetic number, because the mean of its divisors is an integer number (18441231648).

Almost surely, 2^142913226821 is an apocalyptic number.

It is an amenable number.

142913226821 is a deficient number, since it is larger than the sum of its proper divisors (4616626363).

142913226821 is a wasteful number, since it uses less digits than its factorization.

142913226821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203851.

The product of its digits is 82944, while the sum is 41.

The spelling of 142913226821 in words is "one hundred forty-two billion, nine hundred thirteen million, two hundred twenty-six thousand, eight hundred twenty-one".