134421541 has 2 divisors, whose sum is σ = 134421542. Its totient is φ = 134421540.

The previous prime is 134421527. The next prime is 134421557. The reversal of 134421541 is 145124431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80030916 + 54390625 = 8946^2 + 7375^2 .

It is a cyclic number.

It is not a de Polignac number, because 134421541 - 2¹⁷ = 134290469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134421041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67210770 + 67210771.

It is an arithmetic number, because the mean of its divisors is an integer number (67210771).

Almost surely, 2^134421541 is an apocalyptic number.

It is an amenable number.

134421541 is a deficient number, since it is larger than the sum of its proper divisors (1).

134421541 is an equidigital number, since it uses as much as digits as its factorization.

134421541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 25.

The square root of 134421541 is about 11594.0304036172. The cubic root of 134421541 is about 512.2590305607.

Adding to 134421541 its reverse (145124431), we get a palindrome (279545972).

The spelling of 134421541 in words is "one hundred thirty-four million, four hundred twenty-one thousand, five hundred forty-one".