102169987 has 8 divisors (see below), whose sum is σ = 108550800. Its totient is φ = 95979744.

The previous prime is 102169961. The next prime is 102169999. The reversal of 102169987 is 789961201.

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

It is a cyclic number.

It is not a de Polignac number, because 102169987 - 2¹¹ = 102167939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102169927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46537 + ... + 48682.

It is an arithmetic number, because the mean of its divisors is an integer number (13568850).

Almost surely, 2^102169987 is an apocalyptic number.

102169987 is a deficient number, since it is larger than the sum of its proper divisors (6380813).

102169987 is an equidigital number, since it uses as much as digits as its factorization.

102169987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95285.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 102169987 is about 10107.9170455638. The cubic root of 102169987 is about 467.4922827517.

The spelling of 102169987 in words is "one hundred two million, one hundred sixty-nine thousand, nine hundred eighty-seven".