161306301 has 8 divisors (see below), whose sum is σ = 231619360. Its totient is φ = 99265392.

The previous prime is 161306297. The next prime is 161306309. The reversal of 161306301 is 103603161.

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

It is not a de Polignac number, because 161306301 - 2² = 161306297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161306309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2067991 + ... + 2068068.

It is an arithmetic number, because the mean of its divisors is an integer number (28952420).

Almost surely, 2^161306301 is an apocalyptic number.

It is an amenable number.

161306301 is a deficient number, since it is larger than the sum of its proper divisors (70313059).

161306301 is a wasteful number, since it uses less digits than its factorization.

161306301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4136075.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 161306301 is about 12700.6417554390. The cubic root of 161306301 is about 544.3569566936.

Adding to 161306301 its reverse (103603161), we get a palindrome (264909462).

The spelling of 161306301 in words is "one hundred sixty-one million, three hundred six thousand, three hundred one".