993031159 has 2 divisors, whose sum is σ = 993031160. Its totient is φ = 993031158.

The previous prime is 993031157. The next prime is 993031163. The reversal of 993031159 is 951130399.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 993031159 - 2¹ = 993031157 is a prime.

It is a super-2 number, since 2×993031159² = 1972221765489766562, which contains 22 as substring.

Together with 993031157, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993031157) 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 as a sum of consecutive naturals, namely, 496515579 + 496515580.

It is an arithmetic number, because the mean of its divisors is an integer number (496515580).

Almost surely, 2^993031159 is an apocalyptic number.

993031159 is a deficient number, since it is larger than the sum of its proper divisors (1).

993031159 is an equidigital number, since it uses as much as digits as its factorization.

993031159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32805, while the sum is 40.

The square root of 993031159 is about 31512.3969097877. The cubic root of 993031159 is about 997.6716359283.

The spelling of 993031159 in words is "nine hundred ninety-three million, thirty-one thousand, one hundred fifty-nine".