813162443 has 8 divisors (see below), whose sum is σ = 828741888. Its totient is φ = 797730984.

The previous prime is 813162439. The next prime is 813162481. The reversal of 813162443 is 344261318.

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 813162443 - 2² = 813162439 is a prime.

It is a super-2 number, since 2×813162443² = 1322466317411456498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (813162433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25871 + ... + 47912.

It is an arithmetic number, because the mean of its divisors is an integer number (103592736).

Almost surely, 2^813162443 is an apocalyptic number.

813162443 is a deficient number, since it is larger than the sum of its proper divisors (15579445).

813162443 is a wasteful number, since it uses less digits than its factorization.

813162443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73993.

The product of its digits is 13824, while the sum is 32.

The square root of 813162443 is about 28516.0032788608. The cubic root of 813162443 is about 933.3813178419.

The spelling of 813162443 in words is "eight hundred thirteen million, one hundred sixty-two thousand, four hundred forty-three".