302144313 has 4 divisors (see below), whose sum is σ = 402859088. Its totient is φ = 201429540.

The previous prime is 302144309. The next prime is 302144329. The reversal of 302144313 is 313441203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 302144313 - 2² = 302144309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 302144313.

It is not an unprimeable number, because it can be changed into a prime (302144333) 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, 50357383 + ... + 50357388.

It is an arithmetic number, because the mean of its divisors is an integer number (100714772).

Almost surely, 2^302144313 is an apocalyptic number.

It is an amenable number.

302144313 is a deficient number, since it is larger than the sum of its proper divisors (100714775).

302144313 is a wasteful number, since it uses less digits than its factorization.

302144313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100714774.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 302144313 is about 17382.2988410624. The cubic root of 302144313 is about 671.0241358349.

Adding to 302144313 its reverse (313441203), we get a palindrome (615585516).

The spelling of 302144313 in words is "three hundred two million, one hundred forty-four thousand, three hundred thirteen".