305133151 has 2 divisors, whose sum is σ = 305133152. Its totient is φ = 305133150.

The previous prime is 305133139. The next prime is 305133161. The reversal of 305133151 is 151331503.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-305133151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305133131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152566575 + 152566576.

It is an arithmetic number, because the mean of its divisors is an integer number (152566576).

Almost surely, 2^305133151 is an apocalyptic number.

305133151 is a deficient number, since it is larger than the sum of its proper divisors (1).

305133151 is an equidigital number, since it uses as much as digits as its factorization.

305133151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 305133151 is about 17468.0608826509. The cubic root of 305133151 is about 673.2294897259.

Adding to 305133151 its reverse (151331503), we get a palindrome (456464654).

The spelling of 305133151 in words is "three hundred five million, one hundred thirty-three thousand, one hundred fifty-one".