87153187 has 8 divisors (see below), whose sum is σ = 99210240. Its totient is φ = 75785160.

The previous prime is 87153151. The next prime is 87153191. The reversal of 87153187 is 78135178.

It is a happy number.

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

It is not a de Polignac number, because 87153187 - 2¹⁵ = 87120419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87153107) 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, 171987 + ... + 172492.

It is an arithmetic number, because the mean of its divisors is an integer number (12401280).

Almost surely, 2^87153187 is an apocalyptic number.

87153187 is a deficient number, since it is larger than the sum of its proper divisors (12057053).

87153187 is a wasteful number, since it uses less digits than its factorization.

87153187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344513.

The product of its digits is 47040, while the sum is 40.

The square root of 87153187 is about 9335.5871266889. The cubic root of 87153187 is about 443.3646782192.

Subtracting from 87153187 its reverse (78135178), we obtain a square (9018009 = 3003²).

The spelling of 87153187 in words is "eighty-seven million, one hundred fifty-three thousand, one hundred eighty-seven".