73145492 has 48 divisors (see below), whose sum is σ = 159925248. Its totient is φ = 28546560.

The previous prime is 73145477. The next prime is 73145503. The reversal of 73145492 is 29454137.

It is a congruent number.

It is an unprimeable number.

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, 12278 + ... + 17234.

It is an arithmetic number, because the mean of its divisors is an integer number (3331776).

Almost surely, 2^73145492 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 73145492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79962624).

73145492 is an abundant number, since it is smaller than the sum of its proper divisors (86779756).

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

73145492 is a wasteful number, since it uses less digits than its factorization.

73145492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016 (or 5014 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 73145492 is about 8552.5137825086. The cubic root of 73145492 is about 418.2113885431.

It can be divided in two parts, 73145 and 492, that added together give a palindrome (73637).

The spelling of 73145492 in words is "seventy-three million, one hundred forty-five thousand, four hundred ninety-two".