313145141 has 2 divisors, whose sum is σ = 313145142. Its totient is φ = 313145140.

The previous prime is 313145113. The next prime is 313145143. The reversal of 313145141 is 141541313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181010116 + 132135025 = 13454^2 + 11495^2 .

It is an emirp because it is prime and its reverse (141541313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313145141 is a prime.

It is a Sophie Germain prime.

Together with 313145143, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313145143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156572570 + 156572571.

It is an arithmetic number, because the mean of its divisors is an integer number (156572571).

Almost surely, 2^313145141 is an apocalyptic number.

It is an amenable number.

313145141 is a deficient number, since it is larger than the sum of its proper divisors (1).

313145141 is an equidigital number, since it uses as much as digits as its factorization.

313145141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

The square root of 313145141 is about 17695.9074647219. The cubic root of 313145141 is about 679.0710650552.

Adding to 313145141 its reverse (141541313), we get a palindrome (454686454).

The spelling of 313145141 in words is "three hundred thirteen million, one hundred forty-five thousand, one hundred forty-one".