88131287 has 4 divisors (see below), whose sum is σ = 89003976. Its totient is φ = 87258600.

The previous prime is 88131283. The next prime is 88131289. The reversal of 88131287 is 78213188.

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 88131287 - 2² = 88131283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88131287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88131283) 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 3 ways as a sum of consecutive naturals, for example, 436193 + ... + 436394.

It is an arithmetic number, because the mean of its divisors is an integer number (22250994).

Almost surely, 2^88131287 is an apocalyptic number.

88131287 is a deficient number, since it is larger than the sum of its proper divisors (872689).

88131287 is a wasteful number, since it uses less digits than its factorization.

88131287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872688.

The product of its digits is 21504, while the sum is 38.

The square root of 88131287 is about 9387.8265322704. The cubic root of 88131287 is about 445.0171049268.

The spelling of 88131287 in words is "eighty-eight million, one hundred thirty-one thousand, two hundred eighty-seven".