135542487 has 8 divisors (see below), whose sum is σ = 181832704. Its totient is φ = 89806968.

The previous prime is 135542467. The next prime is 135542503. The reversal of 135542487 is 784245531.

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

It is not a de Polignac number, because 135542487 - 2¹⁵ = 135509719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135542417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138103 + ... + 139080.

It is an arithmetic number, because the mean of its divisors is an integer number (22729088).

Almost surely, 2^135542487 is an apocalyptic number.

135542487 is a deficient number, since it is larger than the sum of its proper divisors (46290217).

135542487 is a wasteful number, since it uses less digits than its factorization.

135542487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277349.

The product of its digits is 134400, while the sum is 39.

The square root of 135542487 is about 11642.2715567023. The cubic root of 135542487 is about 513.6790061797.

The spelling of 135542487 in words is "one hundred thirty-five million, five hundred forty-two thousand, four hundred eighty-seven".