13103757 has 6 divisors (see below), whose sum is σ = 18927662. Its totient is φ = 8735832.

The previous prime is 13103747. The next prime is 13103759. The reversal of 13103757 is 75730131.

It can be written as a sum of positive squares in only one way, i.e., 10055241 + 3048516 = 3171^2 + 1746^2 .

It is not a de Polignac number, because 13103757 - 2¹⁵ = 13070989 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 13103757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103759) 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, 727978 + ... + 727995.

Almost surely, 2^13103757 is an apocalyptic number.

It is an amenable number.

13103757 is a deficient number, since it is larger than the sum of its proper divisors (5823905).

13103757 is a wasteful number, since it uses less digits than its factorization.

13103757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455979 (or 1455976 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 27.

The square root of 13103757 is about 3619.9111867558. The cubic root of 13103757 is about 235.7573693778.

Adding to 13103757 its reverse (75730131), we get a palindrome (88833888).

The spelling of 13103757 in words is "thirteen million, one hundred three thousand, seven hundred fifty-seven".