13553743 has 24 divisors (see below), whose sum is σ = 17064432. Its totient is φ = 10692864.

The previous prime is 13553731. The next prime is 13553747. The reversal of 13553743 is 34735531.

It is not a de Polignac number, because 13553743 - 2⁵ = 13553711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13553747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43996 + ... + 44302.

It is an arithmetic number, because the mean of its divisors is an integer number (711018).

Almost surely, 2^13553743 is an apocalyptic number.

13553743 is a deficient number, since it is larger than the sum of its proper divisors (3510689).

13553743 is a wasteful number, since it uses less digits than its factorization.

13553743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 384 counting only the distinct ones).

The product of its digits is 18900, while the sum is 31.

The square root of 13553743 is about 3681.5408458959. The cubic root of 13553743 is about 238.4257086726.

The spelling of 13553743 in words is "thirteen million, five hundred fifty-three thousand, seven hundred forty-three".