113444550 has 72 divisors (see below), whose sum is σ = 316109976. Its totient is φ = 30248640.

The previous prime is 113444543. The next prime is 113444557. The reversal of 113444550 is 55444311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (113444543) and next prime (113444557).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113444557) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7482 + ... + 16818.

Almost surely, 2^113444550 is an apocalyptic number.

113444550 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 113444550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158054988).

113444550 is an abundant number, since it is smaller than the sum of its proper divisors (202665426).

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

113444550 is an equidigital number, since it uses as much as digits as its factorization.

113444550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9364 (or 9347 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 113444550 is about 10651.0351609597. The cubic root of 113444550 is about 484.0919702056.

Adding to 113444550 its reverse (55444311), we get a palindrome (168888861).

The spelling of 113444550 in words is "one hundred thirteen million, four hundred forty-four thousand, five hundred fifty".