13257106 has 4 divisors (see below), whose sum is σ = 19885662. Its totient is φ = 6628552.

The previous prime is 13257077. The next prime is 13257107. The reversal of 13257106 is 60175231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60175231 = 1753 ⋅34327.

It can be written as a sum of positive squares in only one way, i.e., 13256881 + 225 = 3641^2 + 15^2 .

It is not an unprimeable number, because it can be changed into a prime (13257107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314275 + ... + 3314278.

Almost surely, 2^13257106 is an apocalyptic number.

13257106 is a deficient number, since it is larger than the sum of its proper divisors (6628556).

13257106 is an equidigital number, since it uses as much as digits as its factorization.

13257106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6628555.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 13257106 is about 3641.0308979738. The cubic root of 13257106 is about 236.6734689134.

The spelling of 13257106 in words is "thirteen million, two hundred fifty-seven thousand, one hundred six".