87135063 has 16 divisors (see below), whose sum is σ = 122899200. Its totient is φ = 54800064.

The previous prime is 87135049. The next prime is 87135077. The reversal of 87135063 is 36053178.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87135049) and next prime (87135077).

It is not a de Polignac number, because 87135063 - 2⁵ = 87135031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87135263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3613 + ... + 13686.

It is an arithmetic number, because the mean of its divisors is an integer number (7681200).

Almost surely, 2^87135063 is an apocalyptic number.

87135063 is a deficient number, since it is larger than the sum of its proper divisors (35764137).

87135063 is a wasteful number, since it uses less digits than its factorization.

87135063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17398.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 87135063 is about 9334.6163820481. The cubic root of 87135063 is about 443.3339426880. Note that the first 3 decimals are identical.

The spelling of 87135063 in words is "eighty-seven million, one hundred thirty-five thousand, sixty-three".