13425140 has 12 divisors (see below), whose sum is σ = 28192836. Its totient is φ = 5370048.

The previous prime is 13425133. The next prime is 13425149. The reversal of 13425140 is 4152431.

It can be written as a sum of positive squares in 2 ways, for example, as 3363556 + 10061584 = 1834^2 + 3172^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 671257 = 13425140 / (1 + 3 + 4 + 2 + 5 + 1 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13425149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335609 + ... + 335648.

It is an arithmetic number, because the mean of its divisors is an integer number (2349403).

Almost surely, 2^13425140 is an apocalyptic number.

13425140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13425140 is an abundant number, since it is smaller than the sum of its proper divisors (14767696).

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

13425140 is a wasteful number, since it uses less digits than its factorization.

13425140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671266 (or 671264 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 13425140 is about 3664.0332967919. The cubic root of 13425140 is about 237.6692201213.

Adding to 13425140 its reverse (4152431), we get a palindrome (17577571).

The spelling of 13425140 in words is "thirteen million, four hundred twenty-five thousand, one hundred forty".