13751146 has 4 divisors (see below), whose sum is σ = 20626722. Its totient is φ = 6875572.

The previous prime is 13751141. The next prime is 13751149. The reversal of 13751146 is 64115731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64115731 = 6823 ⋅9397.

It can be written as a sum of positive squares in only one way, i.e., 9235521 + 4515625 = 3039^2 + 2125^2 .

It is not an unprimeable number, because it can be changed into a prime (13751141) 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 as a sum of consecutive naturals, namely, 3437785 + ... + 3437788.

Almost surely, 2^13751146 is an apocalyptic number.

13751146 is a deficient number, since it is larger than the sum of its proper divisors (6875576).

13751146 is an equidigital number, since it uses as much as digits as its factorization.

13751146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6875575.

The product of its digits is 2520, while the sum is 28.

The square root of 13751146 is about 3708.2537669367. The cubic root of 13751146 is about 239.5776483860.

Adding to 13751146 its reverse (64115731), we get a palindrome (77866877).

The spelling of 13751146 in words is "thirteen million, seven hundred fifty-one thousand, one hundred forty-six".