42376181 has 2 divisors, whose sum is σ = 42376182. Its totient is φ = 42376180.

The previous prime is 42376129. The next prime is 42376237. The reversal of 42376181 is 18167324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26615281 + 15760900 = 5159^2 + 3970^2 .

It is a cyclic number.

It is not a de Polignac number, because 42376181 - 2²² = 38181877 is a prime.

It is a super-2 number, since 2×42376181² = 3591481432289522, 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 (42376111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21188090 + 21188091.

It is an arithmetic number, because the mean of its divisors is an integer number (21188091).

Almost surely, 2^42376181 is an apocalyptic number.

It is an amenable number.

42376181 is a deficient number, since it is larger than the sum of its proper divisors (1).

42376181 is an equidigital number, since it uses as much as digits as its factorization.

42376181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 42376181 is about 6509.6989945772. The cubic root of 42376181 is about 348.6373712520.

The spelling of 42376181 in words is "forty-two million, three hundred seventy-six thousand, one hundred eighty-one".