13087567 has 4 divisors (see below), whose sum is σ = 13160056. Its totient is φ = 13015080.

The previous prime is 13087559. The next prime is 13087583. The reversal of 13087567 is 76578031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76578031 = 557 ⋅137483.

It is a cyclic number.

It is not a de Polignac number, because 13087567 - 2³ = 13087559 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 (13087507) 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, 35973 + ... + 36334.

It is an arithmetic number, because the mean of its divisors is an integer number (3290014).

Almost surely, 2^13087567 is an apocalyptic number.

13087567 is a deficient number, since it is larger than the sum of its proper divisors (72489).

13087567 is an equidigital number, since it uses as much as digits as its factorization.

13087567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72488.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 13087567 is about 3617.6742528868. The cubic root of 13087567 is about 235.6602347710.

The spelling of 13087567 in words is "thirteen million, eighty-seven thousand, five hundred sixty-seven".