992943121 has 3 divisors (see below), whose sum is σ = 992974633. Its totient is φ = 992911610.

The previous prime is 992943101. The next prime is 992943169. The reversal of 992943121 is 121349299.

The square root of 992943121 is 31511.

It is a perfect power (a square), and thus also a powerful number.

992943121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 121349299 = 41 ⋅2959739.

It is not a de Polignac number, because 992943121 - 2⁹ = 992942609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (992943101) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15756 + ... + 47266.

Almost surely, 2^992943121 is an apocalyptic number.

992943121 is the 31511-st square number.

992943121 is the 15756-th centered octagonal number.

It is an amenable number.

992943121 is a deficient number, since it is larger than the sum of its proper divisors (31512).

992943121 is an frugal number, since it uses more digits than its factorization.

992943121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63022 (or 31511 counting only the distinct ones).

The product of its digits is 34992, while the sum is 40.

The cubic root of 992943121 is about 997.6421519219.

The spelling of 992943121 in words is "nine hundred ninety-two million, nine hundred forty-three thousand, one hundred twenty-one".