87563159 has 2 divisors, whose sum is σ = 87563160. Its totient is φ = 87563158.

The previous prime is 87563149. The next prime is 87563183. The reversal of 87563159 is 95136578.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87563159 - 2⁴ = 87563143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87563149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43781579 + 43781580.

It is an arithmetic number, because the mean of its divisors is an integer number (43781580).

Almost surely, 2^87563159 is an apocalyptic number.

87563159 is a deficient number, since it is larger than the sum of its proper divisors (1).

87563159 is an equidigital number, since it uses as much as digits as its factorization.

87563159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 44.

The square root of 87563159 is about 9357.5188484982. The cubic root of 87563159 is about 444.0587925690.

The spelling of 87563159 in words is "eighty-seven million, five hundred sixty-three thousand, one hundred fifty-nine".