102169161 has 16 divisors (see below), whose sum is σ = 154883520. Its totient is φ = 66528000.

The previous prime is 102169157. The next prime is 102169169. The reversal of 102169161 is 161961201.

It is not a de Polignac number, because 102169161 - 2² = 102169157 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (102169169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42840 + ... + 45161.

It is an arithmetic number, because the mean of its divisors is an integer number (9680220).

Almost surely, 2^102169161 is an apocalyptic number.

It is an amenable number.

102169161 is a deficient number, since it is larger than the sum of its proper divisors (52714359).

102169161 is an equidigital number, since it uses as much as digits as its factorization.

102169161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88053 (or 88047 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 102169161 is about 10107.8761864202. The cubic root of 102169161 is about 467.4910229243.

The spelling of 102169161 in words is "one hundred two million, one hundred sixty-nine thousand, one hundred sixty-one".