13133487 has 8 divisors (see below), whose sum is σ = 17559040. Its totient is φ = 8731800.

The previous prime is 13133479. The next prime is 13133507. The reversal of 13133487 is 78433131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13133487 - 2³ = 13133479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13133467) 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 in 7 ways as a sum of consecutive naturals, for example, 4639 + ... + 6912.

It is an arithmetic number, because the mean of its divisors is an integer number (2194880).

Almost surely, 2^13133487 is an apocalyptic number.

13133487 is a deficient number, since it is larger than the sum of its proper divisors (4425553).

13133487 is a wasteful number, since it uses less digits than its factorization.

13133487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11933.

The product of its digits is 6048, while the sum is 30.

The square root of 13133487 is about 3624.0153145372. The cubic root of 13133487 is about 235.9355313228.

The spelling of 13133487 in words is "thirteen million, one hundred thirty-three thousand, four hundred eighty-seven".