102100161 has 8 divisors (see below), whose sum is σ = 138165664. Its totient is φ = 67050720.

The previous prime is 102100123. The next prime is 102100169. The reversal of 102100161 is 161001201.

It is a happy number.

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

It is not a de Polignac number, because 102100161 - 2⁹ = 102099649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102100169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253780 + ... + 254181.

It is an arithmetic number, because the mean of its divisors is an integer number (17270708).

Almost surely, 2^102100161 is an apocalyptic number.

It is an amenable number.

102100161 is a deficient number, since it is larger than the sum of its proper divisors (36065503).

102100161 is an equidigital number, since it uses as much as digits as its factorization.

102100161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508031.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 102100161 is about 10104.4624300356. The cubic root of 102100161 is about 467.3857591162.

Adding to 102100161 its reverse (161001201), we get a palindrome (263101362).

The spelling of 102100161 in words is "one hundred two million, one hundred thousand, one hundred sixty-one".