161104389 has 8 divisors (see below), whose sum is σ = 214879392. Its totient is φ = 107366160.

The previous prime is 161104387. The next prime is 161104417. The reversal of 161104389 is 983401161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161104389 - 2¹ = 161104387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161104387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3559 + ... + 18299.

It is an arithmetic number, because the mean of its divisors is an integer number (26859924).

Almost surely, 2^161104389 is an apocalyptic number.

It is an amenable number.

161104389 is a deficient number, since it is larger than the sum of its proper divisors (53775003).

161104389 is a wasteful number, since it uses less digits than its factorization.

161104389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18387.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 161104389 is about 12692.6903767483. The cubic root of 161104389 is about 544.1297324764.

The spelling of 161104389 in words is "one hundred sixty-one million, one hundred four thousand, three hundred eighty-nine".