993131063 has 2 divisors, whose sum is σ = 993131064. Its totient is φ = 993131062.

The previous prime is 993131033. The next prime is 993131089. The reversal of 993131063 is 360131399.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-993131063 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993131033) 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, 496565531 + 496565532.

It is an arithmetic number, because the mean of its divisors is an integer number (496565532).

Almost surely, 2^993131063 is an apocalyptic number.

993131063 is a deficient number, since it is larger than the sum of its proper divisors (1).

993131063 is an equidigital number, since it uses as much as digits as its factorization.

993131063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 993131063 is about 31513.9820238573. The cubic root of 993131063 is about 997.7050917583.

Subtracting from 993131063 its sum of digits (35), we obtain a triangular number (993131028 = T₄₄₅₆₇).

The spelling of 993131063 in words is "nine hundred ninety-three million, one hundred thirty-one thousand, sixty-three".