13145757 has 8 divisors (see below), whose sum is σ = 17561376. Its totient is φ = 8746992.

The previous prime is 13145753. The next prime is 13145773. The reversal of 13145757 is 75754131.

13145757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13145757 - 2² = 13145753 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13145753) 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, 2263 + ... + 5604.

It is an arithmetic number, because the mean of its divisors is an integer number (2195172).

Almost surely, 2^13145757 is an apocalyptic number.

It is an amenable number.

13145757 is a deficient number, since it is larger than the sum of its proper divisors (4415619).

13145757 is an equidigital number, since it uses as much as digits as its factorization.

13145757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8427.

The product of its digits is 14700, while the sum is 33.

The square root of 13145757 is about 3625.7077929695. The cubic root of 13145757 is about 236.0089829483.

Adding to 13145757 its reverse (75754131), we get a palindrome (88899888).

The spelling of 13145757 in words is "thirteen million, one hundred forty-five thousand, seven hundred fifty-seven".