113402550 has 48 divisors (see below), whose sum is σ = 282495312. Its totient is φ = 30105600.

The previous prime is 113402539. The next prime is 113402551. The reversal of 113402550 is 55204311.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113402551) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 34582 + ... + 37718.

It is an arithmetic number, because the mean of its divisors is an integer number (5885319).

Almost surely, 2^113402550 is an apocalyptic number.

113402550 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 113402550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141247656).

113402550 is an abundant number, since it is smaller than the sum of its proper divisors (169092762).

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

113402550 is a wasteful number, since it uses less digits than its factorization.

113402550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393 (or 3388 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 113402550 is about 10649.0633390923. The cubic root of 113402550 is about 484.0322218605.

Adding to 113402550 its reverse (55204311), we get a palindrome (168606861).

The spelling of 113402550 in words is "one hundred thirteen million, four hundred two thousand, five hundred fifty".