135454521 has 32 divisors (see below), whose sum is σ = 205003008. Its totient is φ = 79073280.

The previous prime is 135454519. The next prime is 135454537. The reversal of 135454521 is 125454531.

135454521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135454521 - 2¹ = 135454519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135454511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41841 + ... + 44961.

It is an arithmetic number, because the mean of its divisors is an integer number (6406344).

Almost surely, 2^135454521 is an apocalyptic number.

It is an amenable number.

135454521 is a deficient number, since it is larger than the sum of its proper divisors (69548487).

135454521 is a wasteful number, since it uses less digits than its factorization.

135454521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201.

The product of its digits is 12000, while the sum is 30.

The square root of 135454521 is about 11638.4930725588. The cubic root of 135454521 is about 513.5678575966.

The spelling of 135454521 in words is "one hundred thirty-five million, four hundred fifty-four thousand, five hundred twenty-one".