813167942 has 16 divisors (see below), whose sum is σ = 1241451792. Its totient is φ = 399369120.

The previous prime is 813167941. The next prime is 813167983. The reversal of 813167942 is 249761318.

It is a super-2 number, since 2×813167942² = 1322484203793030728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 813167942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813167941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93053 + ... + 101415.

It is an arithmetic number, because the mean of its divisors is an integer number (77590737).

Almost surely, 2^813167942 is an apocalyptic number.

813167942 is a deficient number, since it is larger than the sum of its proper divisors (428283850).

813167942 is a wasteful number, since it uses less digits than its factorization.

813167942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9223.

The product of its digits is 72576, while the sum is 41.

The square root of 813167942 is about 28516.0996982406. The cubic root of 813167942 is about 933.3834218300.

The spelling of 813167942 in words is "eight hundred thirteen million, one hundred sixty-seven thousand, nine hundred forty-two".