300140993 has 4 divisors (see below), whose sum is σ = 303112788. Its totient is φ = 297169200.

The previous prime is 300140963. The next prime is 300140999. The reversal of 300140993 is 399041003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134838544 + 165302449 = 11612^2 + 12857^2 .

It is a cyclic number.

It is not a de Polignac number, because 300140993 - 2¹⁸ = 299878849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (300140999) 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, 1485746 + ... + 1485947.

It is an arithmetic number, because the mean of its divisors is an integer number (75778197).

Almost surely, 2^300140993 is an apocalyptic number.

It is an amenable number.

300140993 is a deficient number, since it is larger than the sum of its proper divisors (2971795).

300140993 is a wasteful number, since it uses less digits than its factorization.

300140993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971794.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 300140993 is about 17324.5777149113. The cubic root of 300140993 is about 669.5378062794.

Adding to 300140993 its reverse (399041003), we get a palindrome (699181996).

The spelling of 300140993 in words is "three hundred million, one hundred forty thousand, nine hundred ninety-three".