13125750 has 128 divisors (see below), whose sum is σ = 37559808. Its totient is φ = 3024000.

The previous prime is 13125727. The next prime is 13125767. The reversal of 13125750 is 5752131.

It is a zygodrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 13125750.

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, 305229 + ... + 305271.

It is an arithmetic number, because the mean of its divisors is an integer number (293436).

Almost surely, 2^13125750 is an apocalyptic number.

13125750 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 13125750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18779904).

13125750 is an abundant number, since it is smaller than the sum of its proper divisors (24434058).

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

13125750 is a wasteful number, since it uses less digits than its factorization.

13125750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 13125750 is about 3622.9476949026. The cubic root of 13125750 is about 235.8891919721.

Adding to 13125750 its reverse (5752131), we get a palindrome (18877881).

The spelling of 13125750 in words is "thirteen million, one hundred twenty-five thousand, seven hundred fifty".