13135420 has 12 divisors (see below), whose sum is σ = 27584424. Its totient is φ = 5254160.

The previous prime is 13135399. The next prime is 13135433. The reversal of 13135420 is 2453131.

13135420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328366 + ... + 328405.

It is an arithmetic number, because the mean of its divisors is an integer number (2298702).

Almost surely, 2^13135420 is an apocalyptic number.

13135420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13135420 is an abundant number, since it is smaller than the sum of its proper divisors (14449004).

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

13135420 is a wasteful number, since it uses less digits than its factorization.

13135420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656780 (or 656778 counting only the distinct ones).

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

The square root of 13135420 is about 3624.2819978583. The cubic root of 13135420 is about 235.9471058323.

Adding to 13135420 its reverse (2453131), we get a palindrome (15588551).

The spelling of 13135420 in words is "thirteen million, one hundred thirty-five thousand, four hundred twenty".