161007117 has 4 divisors (see below), whose sum is σ = 214676160. Its totient is φ = 107338076.

The previous prime is 161007109. The next prime is 161007127. The reversal of 161007117 is 711700161.

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 161007117 - 2³ = 161007109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161007127) 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, 26834517 + ... + 26834522.

It is an arithmetic number, because the mean of its divisors is an integer number (53669040).

Almost surely, 2^161007117 is an apocalyptic number.

It is an amenable number.

161007117 is a deficient number, since it is larger than the sum of its proper divisors (53669043).

161007117 is an equidigital number, since it uses as much as digits as its factorization.

161007117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53669042.

The product of its (nonzero) digits is 294, while the sum is 24.

The square root of 161007117 is about 12688.8579864383. The cubic root of 161007117 is about 544.0201984372.

Adding to 161007117 its reverse (711700161), we get a palindrome (872707278).

The spelling of 161007117 in words is "one hundred sixty-one million, seven thousand, one hundred seventeen".