113403136 has 108 divisors (see below), whose sum is σ = 284900896. Its totient is φ = 44098560.

The previous prime is 113403119. The next prime is 113403167. The reversal of 113403136 is 631304311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216571 + ... + 217093.

Almost surely, 2^113403136 is an apocalyptic number.

113403136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113403136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142450448).

113403136 is an abundant number, since it is smaller than the sum of its proper divisors (171497760).

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

113403136 is an equidigital number, since it uses as much as digits as its factorization.

113403136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 113403136 is about 10649.0908532137. The cubic root of 113403136 is about 484.0330555936.

Adding to 113403136 its reverse (631304311), we get a palindrome (744707447).

The spelling of 113403136 in words is "one hundred thirteen million, four hundred three thousand, one hundred thirty-six".