13128498 has 24 divisors (see below), whose sum is σ = 28674048. Its totient is φ = 4340952.

The previous prime is 13128461. The next prime is 13128499. The reversal of 13128498 is 89482131.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13128499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 586 + ... + 5157.

It is an arithmetic number, because the mean of its divisors is an integer number (1194752).

Almost surely, 2^13128498 is an apocalyptic number.

13128498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13128498 is an abundant number, since it is smaller than the sum of its proper divisors (15545550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13128498 is a wasteful number, since it uses less digits than its factorization.

13128498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5878 (or 5875 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 13128498 is about 3623.3269242507. The cubic root of 13128498 is about 235.9056527018.

The spelling of 13128498 in words is "thirteen million, one hundred twenty-eight thousand, four hundred ninety-eight".