313849 has 2 divisors, whose sum is σ = 313850. Its totient is φ = 313848.

The previous prime is 313829. The next prime is 313853. The reversal of 313849 is 948313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310249 + 3600 = 557^2 + 60^2 .

It is a cyclic number.

It is not a de Polignac number, because 313849 - 2⁷ = 313721 is a prime.

It is an Ulam number.

313849 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (313829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156924 + 156925.

It is an arithmetic number, because the mean of its divisors is an integer number (156925).

2³¹³⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

313849 is a deficient number, since it is larger than the sum of its proper divisors (1).

313849 is an equidigital number, since it uses as much as digits as its factorization.

313849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 313849 is about 560.2222773150. Note that the first 4 decimals coincide. The cubic root of 313849 is about 67.9579468936.

The spelling of 313849 in words is "three hundred thirteen thousand, eight hundred forty-nine".