87135271 has 4 divisors (see below), whose sum is σ = 88612200. Its totient is φ = 85658344.

The previous prime is 87135263. The next prime is 87135277. The reversal of 87135271 is 17253178.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87135271 - 2³ = 87135263 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 (87135277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738376 + ... + 738493.

It is an arithmetic number, because the mean of its divisors is an integer number (22153050).

Almost surely, 2^87135271 is an apocalyptic number.

87135271 is a deficient number, since it is larger than the sum of its proper divisors (1476929).

87135271 is a wasteful number, since it uses less digits than its factorization.

87135271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476928.

The product of its digits is 11760, while the sum is 34.

The square root of 87135271 is about 9334.6275233670. The cubic root of 87135271 is about 443.3342954483.

It can be divided in two parts, 871 and 35271, that multiplied together give a triangular number (30721041 = T₇₈₃₈).

The spelling of 87135271 in words is "eighty-seven million, one hundred thirty-five thousand, two hundred seventy-one".