11481750 has 144 divisors (see below), whose sum is σ = 36844704. Its totient is φ = 2624400.

The previous prime is 11481737. The next prime is 11481773. The reversal of 11481750 is 5718411.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1640247 + ... + 1640253.

It is an arithmetic number, because the mean of its divisors is an integer number (255866).

Almost surely, 2^11481750 is an apocalyptic number.

11481750 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 11481750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18422352).

11481750 is an abundant number, since it is smaller than the sum of its proper divisors (25362954).

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

11481750 is an frugal number, since it uses more digits than its factorization.

11481750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 11481750 is about 3388.4731074630. The cubic root of 11481750 is about 225.5984070734.

Multiplying 11481750 by its product of nonzero digits (1120), we get a square (12859560000 = 113400²).

The spelling of 11481750 in words is "eleven million, four hundred eighty-one thousand, seven hundred fifty".