73389161 has 4 divisors (see below), whose sum is σ = 74592324. Its totient is φ = 72186000.

The previous prime is 73389157. The next prime is 73389193. The reversal of 73389161 is 16198337.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8667136 + 64722025 = 2944^2 + 8045^2 .

It is a cyclic number.

It is not a de Polignac number, because 73389161 - 2² = 73389157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73389131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601490 + ... + 601611.

It is an arithmetic number, because the mean of its divisors is an integer number (18648081).

Almost surely, 2^73389161 is an apocalyptic number.

It is an amenable number.

73389161 is a deficient number, since it is larger than the sum of its proper divisors (1203163).

73389161 is a wasteful number, since it uses less digits than its factorization.

73389161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203162.

The product of its digits is 27216, while the sum is 38.

The square root of 73389161 is about 8566.7473991008. The cubic root of 73389161 is about 418.6752685828.

The spelling of 73389161 in words is "seventy-three million, three hundred eighty-nine thousand, one hundred sixty-one".