134122981 has 2 divisors, whose sum is σ = 134122982. Its totient is φ = 134122980.

The previous prime is 134122969. The next prime is 134122993. The reversal of 134122981 is 189221431.

It is a balanced prime because it is at equal distance from previous prime (134122969) and next prime (134122993).

It can be written as a sum of positive squares in only one way, i.e., 129754881 + 4368100 = 11391^2 + 2090^2 .

It is a cyclic number.

It is not a de Polignac number, because 134122981 - 2⁵ = 134122949 is a prime.

It is a super-2 number, since 2×134122981² = 35977948064652722, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134122951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67061490 + 67061491.

It is an arithmetic number, because the mean of its divisors is an integer number (67061491).

Almost surely, 2^134122981 is an apocalyptic number.

It is an amenable number.

134122981 is a deficient number, since it is larger than the sum of its proper divisors (1).

134122981 is an equidigital number, since it uses as much as digits as its factorization.

134122981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 31.

The square root of 134122981 is about 11581.1476547016. The cubic root of 134122981 is about 511.8794945992.

The spelling of 134122981 in words is "one hundred thirty-four million, one hundred twenty-two thousand, nine hundred eighty-one".