113130450 has 72 divisors (see below), whose sum is σ = 314460900. Its totient is φ = 29124480.

The previous prime is 113130443. The next prime is 113130467. The reversal of 113130450 is 54031311.

It can be written as a sum of positive squares in 6 ways, for example, as 39050001 + 74080449 = 6249^2 + 8607^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8716 + ... + 17384.

Almost surely, 2^113130450 is an apocalyptic number.

113130450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 113130450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157230450).

113130450 is an abundant number, since it is smaller than the sum of its proper divisors (201330450).

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

113130450 is a wasteful number, since it uses less digits than its factorization.

113130450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8716 (or 8708 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 113130450 is about 10636.2798947752. The cubic root of 113130450 is about 483.6447801120.

Adding to 113130450 its reverse (54031311), we get a palindrome (167161761).

The spelling of 113130450 in words is "one hundred thirteen million, one hundred thirty thousand, four hundred fifty".