13481325 has 72 divisors (see below), whose sum is σ = 28435680. Its totient is φ = 6019200.

The previous prime is 13481309. The next prime is 13481327. The reversal of 13481325 is 52318431.

It is a happy number.

It is not a de Polignac number, because 13481325 - 2⁴ = 13481309 is a prime.

It is a super-2 number, since 2×13481325² = 363492247511250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13481327) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 31966 + ... + 32384.

It is an arithmetic number, because the mean of its divisors is an integer number (394940).

Almost surely, 2^13481325 is an apocalyptic number.

13481325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13481325 is an abundant number, since it is smaller than the sum of its proper divisors (14954355).

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

13481325 is a wasteful number, since it uses less digits than its factorization.

13481325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 451 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 13481325 is about 3671.6923890762. The cubic root of 13481325 is about 238.0003118891. Note that the first 3 decimals are identical.

Adding to 13481325 its reverse (52318431), we get a palindrome (65799756).

The spelling of 13481325 in words is "thirteen million, four hundred eighty-one thousand, three hundred twenty-five".