161478233 has 8 divisors (see below), whose sum is σ = 184623552. Its totient is φ = 138352176.

The previous prime is 161478203. The next prime is 161478253. The reversal of 161478233 is 332874161.

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 161478233 - 2¹⁴ = 161461849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161478193 and 161478202.

It is not an unprimeable number, because it can be changed into a prime (161478203) 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, 29066 + ... + 34172.

It is an arithmetic number, because the mean of its divisors is an integer number (23077944).

Almost surely, 2^161478233 is an apocalyptic number.

It is an amenable number.

161478233 is a deficient number, since it is larger than the sum of its proper divisors (23145319).

161478233 is an equidigital number, since it uses as much as digits as its factorization.

161478233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9631.

The product of its digits is 24192, while the sum is 35.

The square root of 161478233 is about 12707.4085871196. The cubic root of 161478233 is about 544.5502931118.

The spelling of 161478233 in words is "one hundred sixty-one million, four hundred seventy-eight thousand, two hundred thirty-three".