134012521 has 4 divisors (see below), whose sum is σ = 134074512. Its totient is φ = 133950532.

The previous prime is 134012507. The next prime is 134012533. The reversal of 134012521 is 125210431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134012521 - 2⁹ = 134012009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134012591) 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 in 3 ways as a sum of consecutive naturals, for example, 27631 + ... + 32116.

It is an arithmetic number, because the mean of its divisors is an integer number (33518628).

Almost surely, 2^134012521 is an apocalyptic number.

It is an amenable number.

134012521 is a deficient number, since it is larger than the sum of its proper divisors (61991).

134012521 is an equidigital number, since it uses as much as digits as its factorization.

134012521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61990.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 134012521 is about 11576.3777149849. The cubic root of 134012521 is about 511.7389327113.

Adding to 134012521 its reverse (125210431), we get a palindrome (259222952).

It can be divided in two parts, 1340 and 12521, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 134012521 in words is "one hundred thirty-four million, twelve thousand, five hundred twenty-one".