134244521 has 2 divisors, whose sum is σ = 134244522. Its totient is φ = 134244520.

The previous prime is 134244503. The next prime is 134244527. The reversal of 134244521 is 125442431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131354521 + 2890000 = 11461^2 + 1700^2 .

It is an emirp because it is prime and its reverse (125442431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134244521 - 2¹⁰ = 134243497 is a prime.

It is not a weakly prime, because it can be changed into another prime (134244527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67122260 + 67122261.

It is an arithmetic number, because the mean of its divisors is an integer number (67122261).

Almost surely, 2^134244521 is an apocalyptic number.

It is an amenable number.

134244521 is a deficient number, since it is larger than the sum of its proper divisors (1).

134244521 is an equidigital number, since it uses as much as digits as its factorization.

134244521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 26.

The square root of 134244521 is about 11586.3937875424. The cubic root of 134244521 is about 512.0340667945.

Adding to 134244521 its reverse (125442431), we get a palindrome (259686952).

The spelling of 134244521 in words is "one hundred thirty-four million, two hundred forty-four thousand, five hundred twenty-one".