13128467 has 4 divisors (see below), whose sum is σ = 14321976. Its totient is φ = 11934960.

The previous prime is 13128461. The next prime is 13128499. The reversal of 13128467 is 76482131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76482131 = 11 ⋅6952921.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13128467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13128461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596738 + ... + 596759.

It is an arithmetic number, because the mean of its divisors is an integer number (3580494).

Almost surely, 2^13128467 is an apocalyptic number.

13128467 is a deficient number, since it is larger than the sum of its proper divisors (1193509).

13128467 is a wasteful number, since it uses less digits than its factorization.

13128467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193508.

The product of its digits is 8064, while the sum is 32.

The square root of 13128467 is about 3623.3226464117. The cubic root of 13128467 is about 235.9054670223.

It can be divided in two parts, 1312 and 8467, that added together give a palindrome (9779).

The spelling of 13128467 in words is "thirteen million, one hundred twenty-eight thousand, four hundred sixty-seven".