161424305 has 8 divisors (see below), whose sum is σ = 221381952. Its totient is φ = 110690928.

The previous prime is 161424301. The next prime is 161424317. The reversal of 161424305 is 503424161.

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 161424305 - 2² = 161424301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161424301) 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, 2306027 + ... + 2306096.

It is an arithmetic number, because the mean of its divisors is an integer number (27672744).

Almost surely, 2^161424305 is an apocalyptic number.

It is an amenable number.

161424305 is a deficient number, since it is larger than the sum of its proper divisors (59957647).

161424305 is an equidigital number, since it uses as much as digits as its factorization.

161424305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4612135.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 161424305 is about 12705.2864981471. The cubic root of 161424305 is about 544.4896662038.

Adding to 161424305 its reverse (503424161), we get a palindrome (664848466).

The spelling of 161424305 in words is "one hundred sixty-one million, four hundred twenty-four thousand, three hundred five".