13135487 has 4 divisors (see below), whose sum is σ = 13263120. Its totient is φ = 13007856.

The previous prime is 13135477. The next prime is 13135519. The reversal of 13135487 is 78453131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13135487 - 2¹⁴ = 13119103 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 (13135477) 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, 63662 + ... + 63867.

It is an arithmetic number, because the mean of its divisors is an integer number (3315780).

Almost surely, 2^13135487 is an apocalyptic number.

13135487 is a deficient number, since it is larger than the sum of its proper divisors (127633).

13135487 is a wasteful number, since it uses less digits than its factorization.

13135487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127632.

The product of its digits is 10080, while the sum is 32.

The square root of 13135487 is about 3624.2912410567. The cubic root of 13135487 is about 235.9475069977.

The spelling of 13135487 in words is "thirteen million, one hundred thirty-five thousand, four hundred eighty-seven".