64215001 has 8 divisors (see below), whose sum is σ = 68062464. Its totient is φ = 60375360.

The previous prime is 64214987. The next prime is 64215023. The reversal of 64215001 is 10051246.

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 64215001 - 2¹⁹ = 63690713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64215001.

It is not an unprimeable number, because it can be changed into a prime (64215101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30096 + ... + 32158.

It is an arithmetic number, because the mean of its divisors is an integer number (8507808).

Almost surely, 2^64215001 is an apocalyptic number.

It is an amenable number.

64215001 is a deficient number, since it is larger than the sum of its proper divisors (3847463).

64215001 is a wasteful number, since it uses less digits than its factorization.

64215001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 64215001 is about 8013.4262959111. The cubic root of 64215001 is about 400.4474181060.

Adding to 64215001 its reverse (10051246), we get a palindrome (74266247).

The spelling of 64215001 in words is "sixty-four million, two hundred fifteen thousand, one".