2136438505 has 8 divisors (see below), whose sum is σ = 2587686912. Its totient is φ = 1693177008.

The previous prime is 2136438487. The next prime is 2136438523. The reversal of 2136438505 is 5058346312.

It is an interprime number because it is at equal distance from previous prime (2136438487) and next prime (2136438523).

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

It is a cyclic number.

It is not a de Polignac number, because 2136438505 - 2¹³ = 2136430313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1996137 + ... + 1997206.

It is an arithmetic number, because the mean of its divisors is an integer number (323460864).

Almost surely, 2^2136438505 is an apocalyptic number.

It is an amenable number.

2136438505 is a deficient number, since it is larger than the sum of its proper divisors (451248407).

2136438505 is a wasteful number, since it uses less digits than its factorization.

2136438505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3993455.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 2136438505 is about 46221.6237815159. The cubic root of 2136438505 is about 1287.9434621560.

The spelling of 2136438505 in words is "two billion, one hundred thirty-six million, four hundred thirty-eight thousand, five hundred five".