100101161 has 4 divisors (see below), whose sum is σ = 100865424. Its totient is φ = 99336900.

The previous prime is 100101121. The next prime is 100101173. The reversal of 100101161 is 161101001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100101161 - 2⁶ = 100101097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100101121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381935 + ... + 382196.

It is an arithmetic number, because the mean of its divisors is an integer number (25216356).

Almost surely, 2^100101161 is an apocalyptic number.

It is an amenable number.

100101161 is a deficient number, since it is larger than the sum of its proper divisors (764263).

100101161 is an equidigital number, since it uses as much as digits as its factorization.

100101161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764262.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 100101161 is about 10005.0567714531. The cubic root of 100101161 is about 464.3153465359.

Adding to 100101161 its reverse (161101001), we get a palindrome (261202162).

The spelling of 100101161 in words is "one hundred million, one hundred one thousand, one hundred sixty-one".