134614461581 has 2 divisors, whose sum is σ = 134614461582. Its totient is φ = 134614461580.

The previous prime is 134614461491. The next prime is 134614461593. The reversal of 134614461581 is 185164416431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130585385956 + 4029075625 = 361366^2 + 63475^2 .

It is a cyclic number.

It is not a de Polignac number, because 134614461581 - 2¹⁴ = 134614445197 is a prime.

It is a super-2 number, since 2×134614461581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134614469581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67307230790 + 67307230791.

It is an arithmetic number, because the mean of its divisors is an integer number (67307230791).

Almost surely, 2^134614461581 is an apocalyptic number.

It is an amenable number.

134614461581 is a deficient number, since it is larger than the sum of its proper divisors (1).

134614461581 is an equidigital number, since it uses as much as digits as its factorization.

134614461581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 44.

The spelling of 134614461581 in words is "one hundred thirty-four billion, six hundred fourteen million, four hundred sixty-one thousand, five hundred eighty-one".