161384803 has 4 divisors (see below), whose sum is σ = 169878760. Its totient is φ = 152890848.

The previous prime is 161384779. The next prime is 161384809. The reversal of 161384803 is 308483161.

161384803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 161384803 - 2⁵ = 161384771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161384809) 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, 4246950 + ... + 4246987.

It is an arithmetic number, because the mean of its divisors is an integer number (42469690).

Almost surely, 2^161384803 is an apocalyptic number.

161384803 is a deficient number, since it is larger than the sum of its proper divisors (8493957).

161384803 is an equidigital number, since it uses as much as digits as its factorization.

161384803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8493956.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 161384803 is about 12703.7318532784. The cubic root of 161384803 is about 544.4452487177.

The spelling of 161384803 in words is "one hundred sixty-one million, three hundred eighty-four thousand, eight hundred three".