73156946 has 8 divisors (see below), whose sum is σ = 109798524. Its totient is φ = 36557440.

The previous prime is 73156939. The next prime is 73156949. The reversal of 73156946 is 64965137.

It can be written as a sum of positive squares in 2 ways, for example, as 61011721 + 12145225 = 7811^2 + 3485^2 .

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

It is not an unprimeable number, because it can be changed into a prime (73156949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5735 + ... + 13386.

Almost surely, 2^73156946 is an apocalyptic number.

73156946 is a deficient number, since it is larger than the sum of its proper divisors (36641578).

73156946 is a wasteful number, since it uses less digits than its factorization.

73156946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21036.

The product of its digits is 136080, while the sum is 41.

The square root of 73156946 is about 8553.1833839805. The cubic root of 73156946 is about 418.2332169251.

The spelling of 73156946 in words is "seventy-three million, one hundred fifty-six thousand, nine hundred forty-six".