313041229 has 2 divisors, whose sum is σ = 313041230. Its totient is φ = 313041228.

The previous prime is 313041227. The next prime is 313041257. The reversal of 313041229 is 922140313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311346025 + 1695204 = 17645^2 + 1302^2 .

It is an emirp because it is prime and its reverse (922140313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313041229 - 2¹ = 313041227 is a prime.

It is a super-2 number, since 2×313041229² = 195989622107660882, which contains 22 as substring.

Together with 313041227, it forms a pair of twin primes.

It is equal to p_16920007 and since 313041229 and 16920007 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313041227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156520614 + 156520615.

It is an arithmetic number, because the mean of its divisors is an integer number (156520615).

Almost surely, 2^313041229 is an apocalyptic number.

It is an amenable number.

313041229 is a deficient number, since it is larger than the sum of its proper divisors (1).

313041229 is an equidigital number, since it uses as much as digits as its factorization.

313041229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 313041229 is about 17692.9711750175. The cubic root of 313041229 is about 678.9959439374.

The spelling of 313041229 in words is "three hundred thirteen million, forty-one thousand, two hundred twenty-nine".