305513433149 has 2 divisors, whose sum is σ = 305513433150. Its totient is φ = 305513433148.

The previous prime is 305513433143. The next prime is 305513433167. The reversal of 305513433149 is 941334315503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304185340900 + 1328092249 = 551530^2 + 36443^2 .

It is a cyclic number.

It is not a de Polignac number, because 305513433149 - 2⁸ = 305513432893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305513433143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152756716574 + 152756716575.

It is an arithmetic number, because the mean of its divisors is an integer number (152756716575).

Almost surely, 2^305513433149 is an apocalyptic number.

It is an amenable number.

305513433149 is a deficient number, since it is larger than the sum of its proper divisors (1).

305513433149 is an equidigital number, since it uses as much as digits as its factorization.

305513433149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 41.

The spelling of 305513433149 in words is "three hundred five billion, five hundred thirteen million, four hundred thirty-three thousand, one hundred forty-nine".