13545780 has 48 divisors (see below), whose sum is σ = 38090304. Its totient is φ = 3596800.

The previous prime is 13545769. The next prime is 13545797. The reversal of 13545780 is 8754531.

13545780 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 15 ways as a sum of consecutive naturals, for example, 23779 + ... + 24341.

It is an arithmetic number, because the mean of its divisors is an integer number (793548).

Almost surely, 2^13545780 is an apocalyptic number.

13545780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13545780 is an abundant number, since it is smaller than the sum of its proper divisors (24544524).

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

13545780 is a wasteful number, since it uses less digits than its factorization.

13545780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 974 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 13545780 is about 3680.4592104790. The cubic root of 13545780 is about 238.3790067922.

The spelling of 13545780 in words is "thirteen million, five hundred forty-five thousand, seven hundred eighty".