303140213 has 8 divisors (see below), whose sum is σ = 304853688. Its totient is φ = 301431744.

The previous prime is 303140197. The next prime is 303140249. The reversal of 303140213 is 312041303.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 138839089 + 164301124 = 11783^2 + 12818^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 303140213 - 2⁴ = 303140197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 303140191 and 303140200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303140263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202295 + ... + 203787.

It is an arithmetic number, because the mean of its divisors is an integer number (38106711).

Almost surely, 2^303140213 is an apocalyptic number.

It is an amenable number.

303140213 is a deficient number, since it is larger than the sum of its proper divisors (1713475).

303140213 is a wasteful number, since it uses less digits than its factorization.

303140213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 303140213 is about 17410.9222328974. The cubic root of 303140213 is about 671.7605830851.

Adding to 303140213 its reverse (312041303), we get a palindrome (615181516).

The spelling of 303140213 in words is "three hundred three million, one hundred forty thousand, two hundred thirteen".