102787159 has 4 divisors (see below), whose sum is σ = 102857680. Its totient is φ = 102716640.

The previous prime is 102787141. The next prime is 102787171. The reversal of 102787159 is 951787201.

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 102787159 - 2¹³ = 102778967 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 (102787199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33027 + ... + 36004.

It is an arithmetic number, because the mean of its divisors is an integer number (25714420).

Almost surely, 2^102787159 is an apocalyptic number.

102787159 is a deficient number, since it is larger than the sum of its proper divisors (70521).

102787159 is an equidigital number, since it uses as much as digits as its factorization.

102787159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70520.

The product of its (nonzero) digits is 35280, while the sum is 40.

The square root of 102787159 is about 10138.4002189695. The cubic root of 102787159 is about 468.4317110603.

The spelling of 102787159 in words is "one hundred two million, seven hundred eighty-seven thousand, one hundred fifty-nine".