161103041 has 16 divisors (see below), whose sum is σ = 180695040. Its totient is φ = 142393680.

The previous prime is 161103023. The next prime is 161103049. The reversal of 161103041 is 140301161.

It is not a de Polignac number, because 161103041 - 2²⁶ = 93994177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161103049) 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 15 ways as a sum of consecutive naturals, for example, 56840 + ... + 59606.

It is an arithmetic number, because the mean of its divisors is an integer number (11293440).

Almost surely, 2^161103041 is an apocalyptic number.

161103041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

161103041 is the 6785-th centered heptagonal number.

It is an amenable number.

161103041 is a deficient number, since it is larger than the sum of its proper divisors (19591999).

161103041 is a wasteful number, since it uses less digits than its factorization.

161103041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 161103041 is about 12692.6372752080. The cubic root of 161103041 is about 544.1282148498.

The spelling of 161103041 in words is "one hundred sixty-one million, one hundred three thousand, forty-one".