134528587 has 8 divisors (see below), whose sum is σ = 140682240. Its totient is φ = 128400360.

The previous prime is 134528579. The next prime is 134528591. The reversal of 134528587 is 785825431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134528587 - 2³ = 134528579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134528507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4912 + ... + 17122.

It is an arithmetic number, because the mean of its divisors is an integer number (17585280).

Almost surely, 2^134528587 is an apocalyptic number.

134528587 is a deficient number, since it is larger than the sum of its proper divisors (6153653).

134528587 is a wasteful number, since it uses less digits than its factorization.

134528587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12713.

The product of its digits is 268800, while the sum is 43.

The square root of 134528587 is about 11598.6459123468. The cubic root of 134528587 is about 512.3949728863.

The spelling of 134528587 in words is "one hundred thirty-four million, five hundred twenty-eight thousand, five hundred eighty-seven".