13122450 has 108 divisors (see below), whose sum is σ = 38912874. Its totient is φ = 3168000.

The previous prime is 13122449. The next prime is 13122463. The reversal of 13122450 is 5422131.

It can be written as a sum of positive squares in 3 ways, for example, as 11108889 + 2013561 = 3333^2 + 1419^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 54330 + ... + 54570.

Almost surely, 2^13122450 is an apocalyptic number.

13122450 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 13122450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19456437).

13122450 is an abundant number, since it is smaller than the sum of its proper divisors (25790424).

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

13122450 is a wasteful number, since it uses less digits than its factorization.

13122450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 13122450 is about 3622.4922360165. The cubic root of 13122450 is about 235.8694216840.

Adding to 13122450 its reverse (5422131), we get a palindrome (18544581).

It can be divided in two parts, 13122 and 450, that multiplied together give a square (5904900 = 2430²).

The spelling of 13122450 in words is "thirteen million, one hundred twenty-two thousand, four hundred fifty".