161869083 has 8 divisors (see below), whose sum is σ = 215896896. Its totient is φ = 107877000.

The previous prime is 161869079. The next prime is 161869093. The reversal of 161869083 is 380968161.

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

It is not a de Polignac number, because 161869083 - 2² = 161869079 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161869003) 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, 4548 + ... + 18558.

It is an arithmetic number, because the mean of its divisors is an integer number (26987112).

Almost surely, 2^161869083 is an apocalyptic number.

161869083 is a deficient number, since it is larger than the sum of its proper divisors (54027813).

161869083 is a wasteful number, since it uses less digits than its factorization.

161869083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17865.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 161869083 is about 12722.7781164335. The cubic root of 161869083 is about 544.9892913756.

The spelling of 161869083 in words is "one hundred sixty-one million, eight hundred sixty-nine thousand, eighty-three".