424258181 has 2 divisors, whose sum is σ = 424258182. Its totient is φ = 424258180.

The previous prime is 424258141. The next prime is 424258199. The reversal of 424258181 is 181852424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251729956 + 172528225 = 15866^2 + 13135^2 .

It is a cyclic number.

It is not a de Polignac number, because 424258181 - 2¹⁰ = 424257157 is a prime.

It is a super-2 number, since 2×424258181² = 359990008290857522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424258141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212129090 + 212129091.

It is an arithmetic number, because the mean of its divisors is an integer number (212129091).

Almost surely, 2^424258181 is an apocalyptic number.

It is an amenable number.

424258181 is a deficient number, since it is larger than the sum of its proper divisors (1).

424258181 is an equidigital number, since it uses as much as digits as its factorization.

424258181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20480, while the sum is 35.

The square root of 424258181 is about 20597.5285167906. The cubic root of 424258181 is about 751.4096044348.

The spelling of 424258181 in words is "four hundred twenty-four million, two hundred fifty-eight thousand, one hundred eighty-one".