813010049 has 6 divisors (see below), whose sum is σ = 849895746. Its totient is φ = 777661280.

The previous prime is 813010043. The next prime is 813010063. The reversal of 813010049 is 940010318.

It can be written as a sum of positive squares in only one way, i.e., 710595649 + 102414400 = 26657^2 + 10120^2 .

It is a de Polignac number, because none of the positive numbers 2^k-813010049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813010043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 767912 + ... + 768969.

It is an arithmetic number, because the mean of its divisors is an integer number (141649291).

Almost surely, 2^813010049 is an apocalyptic number.

It is an amenable number.

813010049 is a deficient number, since it is larger than the sum of its proper divisors (36885697).

813010049 is a wasteful number, since it uses less digits than its factorization.

813010049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536927 (or 1536904 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 813010049 is about 28513.3310751305. The cubic root of 813010049 is about 933.3230061641.

The spelling of 813010049 in words is "eight hundred thirteen million, ten thousand, forty-nine".