101115161 has 4 divisors (see below), whose sum is σ = 115560192. Its totient is φ = 86670132.

The previous prime is 101115137. The next prime is 101115173. The reversal of 101115161 is 161511101.

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 101115161 - 2⁶ = 101115097 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 (101115461) 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, 7222505 + ... + 7222518.

It is an arithmetic number, because the mean of its divisors is an integer number (28890048).

Almost surely, 2^101115161 is an apocalyptic number.

It is an amenable number.

101115161 is a deficient number, since it is larger than the sum of its proper divisors (14445031).

101115161 is an equidigital number, since it uses as much as digits as its factorization.

101115161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14445030.

The product of its (nonzero) digits is 30, while the sum is 17.

The square root of 101115161 is about 10055.6034627465. The cubic root of 101115161 is about 465.8778821888.

Adding to 101115161 its reverse (161511101), we get a palindrome (262626262).

The spelling of 101115161 in words is "one hundred one million, one hundred fifteen thousand, one hundred sixty-one".