134735521 has 2 divisors, whose sum is σ = 134735522. Its totient is φ = 134735520.

The previous prime is 134735501. The next prime is 134735539. The reversal of 134735521 is 125537431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101787921 + 32947600 = 10089^2 + 5740^2 .

It is a cyclic number.

It is not a de Polignac number, because 134735521 - 2²⁵ = 101181089 is a prime.

It is not a weakly prime, because it can be changed into another prime (134735501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67367760 + 67367761.

It is an arithmetic number, because the mean of its divisors is an integer number (67367761).

Almost surely, 2^134735521 is an apocalyptic number.

It is an amenable number.

134735521 is a deficient number, since it is larger than the sum of its proper divisors (1).

134735521 is an equidigital number, since it uses as much as digits as its factorization.

134735521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 31.

The square root of 134735521 is about 11607.5630948102. The cubic root of 134735521 is about 512.6575629757.

The spelling of 134735521 in words is "one hundred thirty-four million, seven hundred thirty-five thousand, five hundred twenty-one".