13751643 has 6 divisors (see below), whose sum is σ = 18344092. Its totient is φ = 9163480.

The previous prime is 13751629. The next prime is 13751651. The reversal of 13751643 is 34615731.

It is not a de Polignac number, because 13751643 - 2⁶ = 13751579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13751643.

It is not an unprimeable number, because it can be changed into a prime (13751603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5353 + ... + 7493.

Almost surely, 2^13751643 is an apocalyptic number.

13751643 is a deficient number, since it is larger than the sum of its proper divisors (4592449).

13751643 is an frugal number, since it uses more digits than its factorization.

13751643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4285 (or 2144 counting only the distinct ones).

The product of its digits is 7560, while the sum is 30.

The square root of 13751643 is about 3708.3207790050. The cubic root of 13751643 is about 239.5805346583.

The spelling of 13751643 in words is "thirteen million, seven hundred fifty-one thousand, six hundred forty-three".