13540120 has 32 divisors (see below), whose sum is σ = 33235920. Its totient is φ = 4923520.

The previous prime is 13540117. The next prime is 13540139. The reversal of 13540120 is 2104531.

13540120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13540120² = 366669699228800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13540094 and 13540103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14947 + ... + 15826.

Almost surely, 2^13540120 is an apocalyptic number.

13540120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13540120 is an abundant number, since it is smaller than the sum of its proper divisors (19695800).

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

13540120 is a wasteful number, since it uses less digits than its factorization.

13540120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30795 (or 30791 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 13540120 is about 3679.6902043514. The cubic root of 13540120 is about 238.3458005552.

Adding to 13540120 its reverse (2104531), we get a palindrome (15644651).

The spelling of 13540120 in words is "thirteen million, five hundred forty thousand, one hundred twenty".