13128364 has 12 divisors (see below), whose sum is σ = 23535288. Its totient is φ = 6404000.

The previous prime is 13128347. The next prime is 13128413. The reversal of 13128364 is 46382131.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39862 + ... + 40189.

It is an arithmetic number, because the mean of its divisors is an integer number (1961274).

Almost surely, 2^13128364 is an apocalyptic number.

It is an amenable number.

13128364 is a deficient number, since it is larger than the sum of its proper divisors (10406924).

13128364 is a wasteful number, since it uses less digits than its factorization.

13128364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80096 (or 80094 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 13128364 is about 3623.3084329105. The cubic root of 13128364 is about 235.9048500849.

The spelling of 13128364 in words is "thirteen million, one hundred twenty-eight thousand, three hundred sixty-four".