1326518087 has 4 divisors (see below), whose sum is σ = 1372260120. Its totient is φ = 1280776056.

The previous prime is 1326518071. The next prime is 1326518107. The reversal of 1326518087 is 7808156231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7808156231 = 21347 ⋅365773.

It is a cyclic number.

It is not a de Polignac number, because 1326518087 - 2⁴ = 1326518071 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 (1326518027) 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, 22870973 + ... + 22871030.

It is an arithmetic number, because the mean of its divisors is an integer number (343065030).

Almost surely, 2^1326518087 is an apocalyptic number.

1326518087 is a deficient number, since it is larger than the sum of its proper divisors (45742033).

1326518087 is an equidigital number, since it uses as much as digits as its factorization.

1326518087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45742032.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 1326518087 is about 36421.3960056448. The cubic root of 1326518087 is about 1098.7639247598.

The spelling of 1326518087 in words is "one billion, three hundred twenty-six million, five hundred eighteen thousand, eighty-seven".