73630161 has 16 divisors (see below), whose sum is σ = 118998720. Its totient is φ = 44624160.

The previous prime is 73630157. The next prime is 73630169. The reversal of 73630161 is 16103637.

It is not a de Polignac number, because 73630161 - 2² = 73630157 is a prime.

It is a super-3 number, since 3×73630161³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (73630169) 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 15 ways as a sum of consecutive naturals, for example, 123660 + ... + 124253.

It is an arithmetic number, because the mean of its divisors is an integer number (7437420).

Almost surely, 2^73630161 is an apocalyptic number.

It is an amenable number.

73630161 is a deficient number, since it is larger than the sum of its proper divisors (45368559).

73630161 is a wasteful number, since it uses less digits than its factorization.

73630161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247933 (or 247927 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 73630161 is about 8580.8018856049. The cubic root of 73630161 is about 419.1330586766.

Adding to 73630161 its reverse (16103637), we get a palindrome (89733798).

The spelling of 73630161 in words is "seventy-three million, six hundred thirty thousand, one hundred sixty-one".