13375749 has 8 divisors (see below), whose sum is σ = 18001440. Its totient is φ = 8833616.

The previous prime is 13375711. The next prime is 13375783. The reversal of 13375749 is 94757331.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13375749 - 2⁹ = 13375237 is a prime.

It is a super-2 number, since 2×13375749² = 357821322622002, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13375049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20514 + ... + 21155.

It is an arithmetic number, because the mean of its divisors is an integer number (2250180).

Almost surely, 2^13375749 is an apocalyptic number.

It is an amenable number.

13375749 is a deficient number, since it is larger than the sum of its proper divisors (4625691).

13375749 is a wasteful number, since it uses less digits than its factorization.

13375749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41779.

The product of its digits is 79380, while the sum is 39.

The square root of 13375749 is about 3657.2871093202. The cubic root of 13375749 is about 237.3774008056.

The spelling of 13375749 in words is "thirteen million, three hundred seventy-five thousand, seven hundred forty-nine".