102642170 has 8 divisors (see below), whose sum is σ = 184755924. Its totient is φ = 41056864.

The previous prime is 102642167. The next prime is 102642259. The reversal of 102642170 is 71246201.

It can be written as a sum of positive squares in 2 ways, for example, as 98982601 + 3659569 = 9949^2 + 1913^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5132099 + ... + 5132118.

Almost surely, 2^102642170 is an apocalyptic number.

102642170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102642170 is a deficient number, since it is larger than the sum of its proper divisors (82113754).

102642170 is a wasteful number, since it uses less digits than its factorization.

102642170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10264224.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 102642170 is about 10131.2472085129. The cubic root of 102642170 is about 468.2113547263.

Adding to 102642170 its reverse (71246201), we get a palindrome (173888371).

The spelling of 102642170 in words is "one hundred two million, six hundred forty-two thousand, one hundred seventy".