999130357 has 2 divisors, whose sum is σ = 999130358. Its totient is φ = 999130356.

The previous prime is 999130343. The next prime is 999130381. The reversal of 999130357 is 753031999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 729054001 + 270076356 = 27001^2 + 16434^2 .

It is a cyclic number.

It is not a de Polignac number, because 999130357 - 2⁷ = 999130229 is a prime.

It is a super-2 number, since 2×999130357² = 1996522940557894898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999130337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499565178 + 499565179.

It is an arithmetic number, because the mean of its divisors is an integer number (499565179).

Almost surely, 2^999130357 is an apocalyptic number.

It is an amenable number.

999130357 is a deficient number, since it is larger than the sum of its proper divisors (1).

999130357 is an equidigital number, since it uses as much as digits as its factorization.

999130357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 229635, while the sum is 46.

The square root of 999130357 is about 31609.0233477721. The cubic root of 999130357 is about 999.7100349284.

The spelling of 999130357 in words is "nine hundred ninety-nine million, one hundred thirty thousand, three hundred fifty-seven".