192112904981 has 4 divisors (see below), whose sum is σ = 192113854464. Its totient is φ = 192111955500.

The previous prime is 192112904909. The next prime is 192112905007. The reversal of 192112904981 is 189409211291.

192112904981 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 Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-192112904981 is a prime.

It is a super-2 number, since 2×192112904981² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192112904381) 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 3 ways as a sum of consecutive naturals, for example, 36215 + ... + 620916.

It is an arithmetic number, because the mean of its divisors is an integer number (48028463616).

Almost surely, 2^192112904981 is an apocalyptic number.

It is an amenable number.

192112904981 is a deficient number, since it is larger than the sum of its proper divisors (949483).

192112904981 is an equidigital number, since it uses as much as digits as its factorization.

192112904981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949482.

The product of its (nonzero) digits is 93312, while the sum is 47.

The spelling of 192112904981 in words is "one hundred ninety-two billion, one hundred twelve million, nine hundred four thousand, nine hundred eighty-one".