813016249 has 2 divisors, whose sum is σ = 813016250. Its totient is φ = 813016248.

The previous prime is 813016241. The next prime is 813016271. The reversal of 813016249 is 942610318.

813016249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 688537600 + 124478649 = 26240^2 + 11157^2 .

It is a cyclic number.

It is not a de Polignac number, because 813016249 - 2³ = 813016241 is a prime.

It is a super-2 number, since 2×813016249² = 1321990842276060002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (813016241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406508124 + 406508125.

It is an arithmetic number, because the mean of its divisors is an integer number (406508125).

Almost surely, 2^813016249 is an apocalyptic number.

It is an amenable number.

813016249 is a deficient number, since it is larger than the sum of its proper divisors (1).

813016249 is an equidigital number, since it uses as much as digits as its factorization.

813016249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 813016249 is about 28513.4397959980. The cubic root of 813016249 is about 933.3253786595.

The spelling of 813016249 in words is "eight hundred thirteen million, sixteen thousand, two hundred forty-nine".