304181093 has 2 divisors, whose sum is σ = 304181094. Its totient is φ = 304181092.

The previous prime is 304181081. The next prime is 304181117. The reversal of 304181093 is 390181403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251444449 + 52736644 = 15857^2 + 7262^2 .

It is an emirp because it is prime and its reverse (390181403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 304181093 - 2¹⁶ = 304115557 is a prime.

It is a super-2 number, since 2×304181093² = 185052274677349298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304381093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152090546 + 152090547.

It is an arithmetic number, because the mean of its divisors is an integer number (152090547).

Almost surely, 2^304181093 is an apocalyptic number.

It is an amenable number.

304181093 is a deficient number, since it is larger than the sum of its proper divisors (1).

304181093 is an equidigital number, since it uses as much as digits as its factorization.

304181093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 304181093 is about 17440.7881989318. The cubic root of 304181093 is about 672.5285702543.

The spelling of 304181093 in words is "three hundred four million, one hundred eighty-one thousand, ninety-three".