113155380 has 192 divisors, whose sum is σ = 385728000. Its totient is φ = 27713664.

The previous prime is 113155319. The next prime is 113155391. The reversal of 113155380 is 83551311.

113155380 is a `hidden beast` number, since 1 + 1 + 31 + 553 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 568521 + ... + 568719.

It is an arithmetic number, because the mean of its divisors is an integer number (2009000).

Almost surely, 2^113155380 is an apocalyptic number.

113155380 is a gapful number since it is divisible by the number (10) 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 113155380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192864000).

113155380 is an abundant number, since it is smaller than the sum of its proper divisors (272572620).

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

113155380 is a wasteful number, since it uses less digits than its factorization.

113155380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 113155380 is about 10637.4517625228. The cubic root of 113155380 is about 483.6803036420.

The spelling of 113155380 in words is "one hundred thirteen million, one hundred fifty-five thousand, three hundred eighty".