302130253 has 2 divisors, whose sum is σ = 302130254. Its totient is φ = 302130252.

The previous prime is 302130223. The next prime is 302130281. The reversal of 302130253 is 352031203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264160009 + 37970244 = 16253^2 + 6162^2 .

It is a cyclic number.

It is not a de Polignac number, because 302130253 - 2¹³ = 302122061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 302130253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302130223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151065126 + 151065127.

It is an arithmetic number, because the mean of its divisors is an integer number (151065127).

Almost surely, 2^302130253 is an apocalyptic number.

It is an amenable number.

302130253 is a deficient number, since it is larger than the sum of its proper divisors (1).

302130253 is an equidigital number, since it uses as much as digits as its factorization.

302130253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 302130253 is about 17381.8944019344. The cubic root of 302130253 is about 671.0137271822.

Adding to 302130253 its reverse (352031203), we get a palindrome (654161456).

The spelling of 302130253 in words is "three hundred two million, one hundred thirty thousand, two hundred fifty-three".