73151232 has 144 divisors (see below), whose sum is σ = 242925312. Its totient is φ = 18984960.

The previous prime is 73151231. The next prime is 73151233. The reversal of 73151232 is 23215137.

It is an interprime number because it is at equal distance from previous prime (73151231) and next prime (73151233).

It is a super-2 number, since 2×73151232² = 10702205486235648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

Its product of digits (1260) is a multiple of the sum of its prime divisors (1260).

It is not an unprimeable number, because it can be changed into a prime (73151231) 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, 58518 + ... + 59754.

Almost surely, 2^73151232 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 73151232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121462656).

73151232 is an abundant number, since it is smaller than the sum of its proper divisors (169774080).

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

73151232 is a wasteful number, since it uses less digits than its factorization.

73151232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274 (or 1260 counting only the distinct ones).

The product of its digits is 1260, while the sum is 24.

The square root of 73151232 is about 8552.8493497781. The cubic root of 73151232 is about 418.2223277936. Note that the first 3 decimals are identical.

Adding to 73151232 its reverse (23215137), we get a palindrome (96366369).

The spelling of 73151232 in words is "seventy-three million, one hundred fifty-one thousand, two hundred thirty-two".