13545778 has 8 divisors (see below), whose sum is σ = 20415600. Its totient is φ = 6740580.

The previous prime is 13545769. The next prime is 13545797. The reversal of 13545778 is 87754531.

13545778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13545778.

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, 15628 + ... + 16471.

It is an arithmetic number, because the mean of its divisors is an integer number (2551950).

Almost surely, 2^13545778 is an apocalyptic number.

13545778 is a deficient number, since it is larger than the sum of its proper divisors (6869822).

13545778 is a wasteful number, since it uses less digits than its factorization.

13545778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32312.

The product of its digits is 117600, while the sum is 40.

The square root of 13545778 is about 3680.4589387738. The cubic root of 13545778 is about 238.3789950602.

Adding to 13545778 its product of digits (117600), we get a triangular number (13663378 = T₅₂₂₇).

The spelling of 13545778 in words is "thirteen million, five hundred forty-five thousand, seven hundred seventy-eight".