313020049 has 2 divisors, whose sum is σ = 313020050. Its totient is φ = 313020048.

The previous prime is 313020023. The next prime is 313020083. The reversal of 313020049 is 940020313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213160000 + 99860049 = 14600^2 + 9993^2 .

It is an emirp because it is prime and its reverse (940020313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313020049 - 2⁵ = 313020017 is a prime.

It is not a weakly prime, because it can be changed into another prime (313023049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156510024 + 156510025.

It is an arithmetic number, because the mean of its divisors is an integer number (156510025).

Almost surely, 2^313020049 is an apocalyptic number.

It is an amenable number.

313020049 is a deficient number, since it is larger than the sum of its proper divisors (1).

313020049 is an equidigital number, since it uses as much as digits as its factorization.

313020049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 313020049 is about 17692.3726221217. The cubic root of 313020049 is about 678.9806302373.

The spelling of 313020049 in words is "three hundred thirteen million, twenty thousand, forty-nine".