13748137 has 8 divisors (see below), whose sum is σ = 14893704. Its totient is φ = 12615168.

The previous prime is 13748099. The next prime is 13748149. The reversal of 13748137 is 73184731.

It can be written as a sum of positive squares in 4 ways, for example, as 2752281 + 10995856 = 1659^2 + 3316^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13748137 is a prime.

It is a super-2 number, since 2×13748137² = 378022541941538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13748167) 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, 808 + ... + 5305.

It is an arithmetic number, because the mean of its divisors is an integer number (1861713).

Almost surely, 2^13748137 is an apocalyptic number.

It is an amenable number.

13748137 is a deficient number, since it is larger than the sum of its proper divisors (1145567).

13748137 is a wasteful number, since it uses less digits than its factorization.

13748137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6299.

The product of its digits is 14112, while the sum is 34.

The square root of 13748137 is about 3707.8480281694. The cubic root of 13748137 is about 239.5601724672.

The spelling of 13748137 in words is "thirteen million, seven hundred forty-eight thousand, one hundred thirty-seven".