73161732 has 48 divisors (see below), whose sum is σ = 195914880. Its totient is φ = 20815872.

The previous prime is 73161709. The next prime is 73161743. The reversal of 73161732 is 23716137.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 73161732.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19894 + ... + 23282.

It is an arithmetic number, because the mean of its divisors is an integer number (4081560).

Almost surely, 2^73161732 is an apocalyptic number.

It is an amenable number.

73161732 is an abundant number, since it is smaller than the sum of its proper divisors (122753148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73161732 is a wasteful number, since it uses less digits than its factorization.

73161732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660 (or 3658 counting only the distinct ones).

The product of its digits is 5292, while the sum is 30.

The square root of 73161732 is about 8553.4631582769. The cubic root of 73161732 is about 418.2423371369.

Adding to 73161732 its reverse (23716137), we get a palindrome (96877869).

The spelling of 73161732 in words is "seventy-three million, one hundred sixty-one thousand, seven hundred thirty-two".