87135499 has 8 divisors (see below), whose sum is σ = 96261120. Its totient is φ = 78210600.

The previous prime is 87135493. The next prime is 87135541. The reversal of 87135499 is 99453178.

It is a happy number.

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 87135499 - 2³ = 87135491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87135491) 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, 49267 + ... + 51004.

It is an arithmetic number, because the mean of its divisors is an integer number (12032640).

Almost surely, 2^87135499 is an apocalyptic number.

87135499 is a deficient number, since it is larger than the sum of its proper divisors (9125621).

87135499 is a wasteful number, since it uses less digits than its factorization.

87135499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100361.

The product of its digits is 272160, while the sum is 46.

The square root of 87135499 is about 9334.6397359512. The cubic root of 87135499 is about 443.3346821273.

The spelling of 87135499 in words is "eighty-seven million, one hundred thirty-five thousand, four hundred ninety-nine".