73158132 has 48 divisors (see below), whose sum is σ = 183536640. Its totient is φ = 22607712.

The previous prime is 73158083. The next prime is 73158133. The reversal of 73158132 is 23185137.

73158132 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×73158132² = 10704224555458848, which contains 22 as substring.

73158132 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 73158132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73158133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7303 + ... + 14129.

It is an arithmetic number, because the mean of its divisors is an integer number (3823680).

Almost surely, 2^73158132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73158132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91768320).

73158132 is an abundant number, since it is smaller than the sum of its proper divisors (110378508).

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

73158132 is a wasteful number, since it uses less digits than its factorization.

73158132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900 (or 6898 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 73158132 is about 8553.2527146110. The cubic root of 73158132 is about 418.2354770063.

The spelling of 73158132 in words is "seventy-three million, one hundred fifty-eight thousand, one hundred thirty-two".