113405130 has 128 divisors (see below), whose sum is σ = 330946560. Its totient is φ = 27509760.

The previous prime is 113405119. The next prime is 113405143. The reversal of 113405130 is 31504311.

113405130 is a `hidden beast` number, since 113 + 40 + 513 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 141892 + ... + 142688.

It is an arithmetic number, because the mean of its divisors is an integer number (2585520).

Almost surely, 2^113405130 is an apocalyptic number.

113405130 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 113405130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165473280).

113405130 is an abundant number, since it is smaller than the sum of its proper divisors (217541430).

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

113405130 is a wasteful number, since it uses less digits than its factorization.

113405130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 855 counting only the distinct ones).

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

The square root of 113405130 is about 10649.1844758179. The cubic root of 113405130 is about 484.0358925412.

Adding to 113405130 its reverse (31504311), we get a palindrome (144909441).

The spelling of 113405130 in words is "one hundred thirteen million, four hundred five thousand, one hundred thirty".