161103567 has 4 divisors (see below), whose sum is σ = 214804760. Its totient is φ = 107402376.

The previous prime is 161103557. The next prime is 161103583. The reversal of 161103567 is 765301161.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-161103567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161103557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26850592 + ... + 26850597.

It is an arithmetic number, because the mean of its divisors is an integer number (53701190).

Almost surely, 2^161103567 is an apocalyptic number.

161103567 is a deficient number, since it is larger than the sum of its proper divisors (53701193).

161103567 is an equidigital number, since it uses as much as digits as its factorization.

161103567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53701192.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 161103567 is about 12692.6579958652. The cubic root of 161103567 is about 544.1288070404.

The spelling of 161103567 in words is "one hundred sixty-one million, one hundred three thousand, five hundred sixty-seven".