113155224 has 128 divisors (see below), whose sum is σ = 351267840. Its totient is φ = 29578752.

The previous prime is 113155199. The next prime is 113155243. The reversal of 113155224 is 422551311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 113155194 and 113155203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 430117 + ... + 430379.

It is an arithmetic number, because the mean of its divisors is an integer number (2744280).

Almost surely, 2^113155224 is an apocalyptic number.

113155224 is a gapful number since it is divisible by the number (14) 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 113155224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175633920).

113155224 is an abundant number, since it is smaller than the sum of its proper divisors (238112616).

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

113155224 is a wasteful number, since it uses less digits than its factorization.

113155224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 485 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 113155224 is about 10637.4444299371. Note that the first 4 decimals coincide. The cubic root of 113155224 is about 483.6800813690.

The spelling of 113155224 in words is "one hundred thirteen million, one hundred fifty-five thousand, two hundred twenty-four".