87199159 has 4 divisors (see below), whose sum is σ = 87335416. Its totient is φ = 87062904.

The previous prime is 87199153. The next prime is 87199163. The reversal of 87199159 is 95199178.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95199178 = 2 ⋅47599589.

It is a cyclic number.

It is not a de Polignac number, because 87199159 - 2⁵ = 87199127 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 (87199153) 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, 67164 + ... + 68449.

It is an arithmetic number, because the mean of its divisors is an integer number (21833854).

Almost surely, 2^87199159 is an apocalyptic number.

87199159 is a deficient number, since it is larger than the sum of its proper divisors (136257).

87199159 is a wasteful number, since it uses less digits than its factorization.

87199159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136256.

The product of its digits is 204120, while the sum is 49.

The square root of 87199159 is about 9338.0489932319. The cubic root of 87199159 is about 443.4426205907.

The spelling of 87199159 in words is "eighty-seven million, one hundred ninety-nine thousand, one hundred fifty-nine".