161300317 has 4 divisors (see below), whose sum is σ = 161330400. Its totient is φ = 161270236.

The previous prime is 161300303. The next prime is 161300323. The reversal of 161300317 is 713003161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161300317 - 2⁷ = 161300189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161300327) 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, 4567 + ... + 18532.

It is an arithmetic number, because the mean of its divisors is an integer number (40332600).

Almost surely, 2^161300317 is an apocalyptic number.

It is an amenable number.

161300317 is a deficient number, since it is larger than the sum of its proper divisors (30083).

161300317 is an equidigital number, since it uses as much as digits as its factorization.

161300317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30082.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 161300317 is about 12700.4061746072. The cubic root of 161300317 is about 544.3502252510.

Adding to 161300317 its reverse (713003161), we get a palindrome (874303478).

The spelling of 161300317 in words is "one hundred sixty-one million, three hundred thousand, three hundred seventeen".