813144835 has 8 divisors (see below), whose sum is σ = 998466480. Its totient is φ = 635387424.

The previous prime is 813144821. The next prime is 813144863. The reversal of 813144835 is 538441318.

813144835 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 813144835 - 2⁷ = 813144707 is a prime.

It is a super-2 number, since 2×813144835² = 1322409045374354450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 813144794 and 813144803.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1890820 + ... + 1891249.

It is an arithmetic number, because the mean of its divisors is an integer number (124808310).

Almost surely, 2^813144835 is an apocalyptic number.

813144835 is a deficient number, since it is larger than the sum of its proper divisors (185321645).

813144835 is a wasteful number, since it uses less digits than its factorization.

813144835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3782117.

The product of its digits is 46080, while the sum is 37.

The square root of 813144835 is about 28515.6945382714. The cubic root of 813144835 is about 933.3745807310.

The spelling of 813144835 in words is "eight hundred thirteen million, one hundred forty-four thousand, eight hundred thirty-five".