990158363 has 2 divisors, whose sum is σ = 990158364. Its totient is φ = 990158362.

The previous prime is 990158359. The next prime is 990158399. The reversal of 990158363 is 363851099.

990158363 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 990158363 - 2² = 990158359 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (990158063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495079181 + 495079182.

It is an arithmetic number, because the mean of its divisors is an integer number (495079182).

Almost surely, 2^990158363 is an apocalyptic number.

990158363 is a deficient number, since it is larger than the sum of its proper divisors (1).

990158363 is an equidigital number, since it uses as much as digits as its factorization.

990158363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 990158363 is about 31466.7818977410. The cubic root of 990158363 is about 996.7086331226.

The spelling of 990158363 in words is "nine hundred ninety million, one hundred fifty-eight thousand, three hundred sixty-three".