45731100 has 144 divisors (see below), whose sum is σ = 142490880. Its totient is φ = 11289600.

The previous prime is 45731087. The next prime is 45731111. The reversal of 45731100 is 113754.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 404644 + ... + 404756.

It is an arithmetic number, because the mean of its divisors is an integer number (989520).

Almost surely, 2^45731100 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 45731100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71245440).

45731100 is an abundant number, since it is smaller than the sum of its proper divisors (96759780).

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

45731100 is a wasteful number, since it uses less digits than its factorization.

45731100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 45731100 is about 6762.4773567089. The cubic root of 45731100 is about 357.6052471841.

Adding to 45731100 its reverse (113754), we get a palindrome (45844854).

The spelling of 45731100 in words is "forty-five million, seven hundred thirty-one thousand, one hundred".