161479121 has 8 divisors (see below), whose sum is σ = 162641280. Its totient is φ = 160321392.

The previous prime is 161479111. The next prime is 161479133. The reversal of 161479121 is 121974161.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 161479121 - 2⁶ = 161479057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161479111) 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, 105266 + ... + 106788.

It is an arithmetic number, because the mean of its divisors is an integer number (20330160).

Almost surely, 2^161479121 is an apocalyptic number.

It is an amenable number.

161479121 is a deficient number, since it is larger than the sum of its proper divisors (1162159).

161479121 is a wasteful number, since it uses less digits than its factorization.

161479121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215.

The product of its digits is 3024, while the sum is 32.

The square root of 161479121 is about 12707.4435273189. The cubic root of 161479121 is about 544.5512913058.

The spelling of 161479121 in words is "one hundred sixty-one million, four hundred seventy-nine thousand, one hundred twenty-one".