161096203 has 4 divisors (see below), whose sum is σ = 164135808. Its totient is φ = 158056600.

The previous prime is 161096171. The next prime is 161096219. The reversal of 161096203 is 302690161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302690161 = 577 ⋅524593.

It is not a de Polignac number, because 161096203 - 2⁵ = 161096171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161094203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1519723 + ... + 1519828.

It is an arithmetic number, because the mean of its divisors is an integer number (41033952).

Almost surely, 2^161096203 is an apocalyptic number.

161096203 is a deficient number, since it is larger than the sum of its proper divisors (3039605).

161096203 is an equidigital number, since it uses as much as digits as its factorization.

161096203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039604.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 161096203 is about 12692.3679035868. The cubic root of 161096203 is about 544.1205162544.

The spelling of 161096203 in words is "one hundred sixty-one million, ninety-six thousand, two hundred three".