4005213565 has 8 divisors (see below), whose sum is σ = 4807162080. Its totient is φ = 3203566992.

The previous prime is 4005213557. The next prime is 4005213637. The reversal of 4005213565 is 5653125004.

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 4005213565 - 2³ = 4005213557 is a prime.

It is a congruent 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, 45195 + ... + 100264.

It is an arithmetic number, because the mean of its divisors is an integer number (600895260).

Almost surely, 2^4005213565 is an apocalyptic number.

It is an amenable number.

4005213565 is a deficient number, since it is larger than the sum of its proper divisors (801948515).

4005213565 is a wasteful number, since it uses less digits than its factorization.

4005213565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150971.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 4005213565 is about 63286.7566320158. The cubic root of 4005213565 is about 1588.0904207629.

Adding to 4005213565 its reverse (5653125004), we get a palindrome (9658338569).

The spelling of 4005213565 in words is "four billion, five million, two hundred thirteen thousand, five hundred sixty-five".