300130993 has 4 divisors (see below), whose sum is σ = 300186148. Its totient is φ = 300075840.

The previous prime is 300130981. The next prime is 300131021. The reversal of 300130993 is 399031003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 399031003 = 7 ⋅57004429.

It can be written as a sum of positive squares in 2 ways, for example, as 45792289 + 254338704 = 6767^2 + 15948^2 .

It is a cyclic number.

It is not a de Polignac number, because 300130993 - 2²⁵ = 266576561 is a prime.

It is a super-2 number, since 2×300130993² = 180157225918332098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (300130913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18396 + ... + 30637.

It is an arithmetic number, because the mean of its divisors is an integer number (75046537).

Almost surely, 2^300130993 is an apocalyptic number.

It is an amenable number.

300130993 is a deficient number, since it is larger than the sum of its proper divisors (55155).

300130993 is an equidigital number, since it uses as much as digits as its factorization.

300130993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55154.

The product of its (nonzero) digits is 2187, while the sum is 28.

The square root of 300130993 is about 17324.2891051841. The cubic root of 300130993 is about 669.5303703825.

Adding to 300130993 its reverse (399031003), we get a palindrome (699161996).

The spelling of 300130993 in words is "three hundred million, one hundred thirty thousand, nine hundred ninety-three".