13751691 has 8 divisors (see below), whose sum is σ = 19414224. Its totient is φ = 8628480.

The previous prime is 13751681. The next prime is 13751737. The reversal of 13751691 is 19615731.

It is a happy number.

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

It is not a de Polignac number, because 13751691 - 2⁵ = 13751659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13751651) 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 7 ways as a sum of consecutive naturals, for example, 134770 + ... + 134871.

It is an arithmetic number, because the mean of its divisors is an integer number (2426778).

Almost surely, 2^13751691 is an apocalyptic number.

13751691 is a deficient number, since it is larger than the sum of its proper divisors (5662533).

13751691 is a wasteful number, since it uses less digits than its factorization.

13751691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269661.

The product of its digits is 5670, while the sum is 33.

The square root of 13751691 is about 3708.3272509313. The cubic root of 13751691 is about 239.5808134093.

The spelling of 13751691 in words is "thirteen million, seven hundred fifty-one thousand, six hundred ninety-one".