992748139 has 2 divisors, whose sum is σ = 992748140. Its totient is φ = 992748138.

The previous prime is 992748137. The next prime is 992748151. The reversal of 992748139 is 931847299.

It is a happy number.

992748139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 992748139 - 2¹ = 992748137 is a prime.

Together with 992748137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (992748137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496374069 + 496374070.

It is an arithmetic number, because the mean of its divisors is an integer number (496374070).

Almost surely, 2^992748139 is an apocalyptic number.

992748139 is a deficient number, since it is larger than the sum of its proper divisors (1).

992748139 is an equidigital number, since it uses as much as digits as its factorization.

992748139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 52.

The square root of 992748139 is about 31507.9059761197. The cubic root of 992748139 is about 997.5768460677.

The spelling of 992748139 in words is "nine hundred ninety-two million, seven hundred forty-eight thousand, one hundred thirty-nine".