13381250 has 24 divisors (see below), whose sum is σ = 25099956. Its totient is φ = 5350000.

The previous prime is 13381241. The next prime is 13381271. The reversal of 13381250 is 5218331.

It can be written as a sum of positive squares in 6 ways, for example, as 66049 + 13315201 = 257^2 + 3649^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5180 + ... + 7320.

Almost surely, 2^13381250 is an apocalyptic number.

13381250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13381250 is a deficient number, since it is larger than the sum of its proper divisors (11718706).

13381250 is an frugal number, since it uses more digits than its factorization.

13381250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168 (or 2148 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 13381250 is about 3658.0390921913. The cubic root of 13381250 is about 237.4099381513.

Adding to 13381250 its reverse (5218331), we get a palindrome (18599581).

It can be divided in two parts, 13381 and 250, that added together give a palindrome (13631).

The spelling of 13381250 in words is "thirteen million, three hundred eighty-one thousand, two hundred fifty".