313412161 has 4 divisors (see below), whose sum is σ = 319325652. Its totient is φ = 307498672.

The previous prime is 313412149. The next prime is 313412173. The reversal of 313412161 is 161214313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161214313 = 13 ⋅12401101.

It is an interprime number because it is at equal distance from previous prime (313412149) and next prime (313412173).

It can be written as a sum of positive squares in 2 ways, for example, as 250114225 + 63297936 = 15815^2 + 7956^2 .

It is a cyclic number.

It is not a de Polignac number, because 313412161 - 2¹³ = 313403969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313412101) 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, 2956666 + ... + 2956771.

It is an arithmetic number, because the mean of its divisors is an integer number (79831413).

Almost surely, 2^313412161 is an apocalyptic number.

It is an amenable number.

313412161 is a deficient number, since it is larger than the sum of its proper divisors (5913491).

313412161 is an equidigital number, since it uses as much as digits as its factorization.

313412161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5913490.

The product of its digits is 432, while the sum is 22.

The square root of 313412161 is about 17703.4505393723. The cubic root of 313412161 is about 679.2640256747.

Adding to 313412161 its reverse (161214313), we get a palindrome (474626474).

The spelling of 313412161 in words is "three hundred thirteen million, four hundred twelve thousand, one hundred sixty-one".