134122181 has 2 divisors, whose sum is σ = 134122182. Its totient is φ = 134122180.

The previous prime is 134122139. The next prime is 134122207. The reversal of 134122181 is 181221431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97337956 + 36784225 = 9866^2 + 6065^2 .

It is an emirp because it is prime and its reverse (181221431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134122181 - 2¹⁰ = 134121157 is a prime.

It is a super-2 number, since 2×134122181² = 35977518872393522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134122381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67061090 + 67061091.

It is an arithmetic number, because the mean of its divisors is an integer number (67061091).

Almost surely, 2^134122181 is an apocalyptic number.

It is an amenable number.

134122181 is a deficient number, since it is larger than the sum of its proper divisors (1).

134122181 is an equidigital number, since it uses as much as digits as its factorization.

134122181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 23.

The square root of 134122181 is about 11581.1131157588. The cubic root of 134122181 is about 511.8784768656.

The spelling of 134122181 in words is "one hundred thirty-four million, one hundred twenty-two thousand, one hundred eighty-one".