13122750 has 32 divisors (see below), whose sum is σ = 32756256. Its totient is φ = 3499200.

The previous prime is 13122737. The next prime is 13122751. The reversal of 13122750 is 5722131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122751) 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 15 ways as a sum of consecutive naturals, for example, 7999 + ... + 9498.

It is an arithmetic number, because the mean of its divisors is an integer number (1023633).

Almost surely, 2^13122750 is an apocalyptic number.

13122750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13122750 is an abundant number, since it is smaller than the sum of its proper divisors (19633506).

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

13122750 is a wasteful number, since it uses less digits than its factorization.

13122750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17517 (or 17507 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 13122750 is about 3622.5336437361. The cubic root of 13122750 is about 235.8712191199.

Adding to 13122750 its reverse (5722131), we get a palindrome (18844881).

The spelling of 13122750 in words is "thirteen million, one hundred twenty-two thousand, seven hundred fifty".