13431250 has 48 divisors (see below), whose sum is σ = 28873152. Its totient is φ = 4590000.

The previous prime is 13431239. The next prime is 13431251. The reversal of 13431250 is 5213431.

It is not an unprimeable number, because it can be changed into a prime (13431251) 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, 43597 + ... + 43903.

It is an arithmetic number, because the mean of its divisors is an integer number (601524).

Almost surely, 2^13431250 is an apocalyptic number.

13431250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13431250 is an abundant number, since it is smaller than the sum of its proper divisors (15441902).

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

13431250 is an frugal number, since it uses more digits than its factorization.

13431250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13431250 is about 3664.8669825793. The cubic root of 13431250 is about 237.7052703646.

Adding to 13431250 its reverse (5213431), we get a palindrome (18644681).

The spelling of 13431250 in words is "thirteen million, four hundred thirty-one thousand, two hundred fifty".