161161486 has 8 divisors (see below), whose sum is σ = 241796160. Its totient is φ = 80562768.

The previous prime is 161161471. The next prime is 161161489. The reversal of 161161486 is 684161161.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161161489) 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, 12355 + ... + 21793.

It is an arithmetic number, because the mean of its divisors is an integer number (30224520).

Almost surely, 2^161161486 is an apocalyptic number.

161161486 is a deficient number, since it is larger than the sum of its proper divisors (80634674).

161161486 is an equidigital number, since it uses as much as digits as its factorization.

161161486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17978.

The product of its digits is 6912, while the sum is 34.

The square root of 161161486 is about 12694.9393854402. The cubic root of 161161486 is about 544.1940065494.

The spelling of 161161486 in words is "one hundred sixty-one million, one hundred sixty-one thousand, four hundred eighty-six".