64001271 has 8 divisors (see below), whose sum is σ = 85812480. Its totient is φ = 42428792.

The previous prime is 64001237. The next prime is 64001303. The reversal of 64001271 is 17210046.

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 64001271 - 2¹⁰ = 64000247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64001471) 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, 59055 + ... + 60128.

It is an arithmetic number, because the mean of its divisors is an integer number (10726560).

Almost surely, 2^64001271 is an apocalyptic number.

64001271 is a deficient number, since it is larger than the sum of its proper divisors (21811209).

64001271 is a wasteful number, since it uses less digits than its factorization.

64001271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119365.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 64001271 is about 8000.0794371056. The cubic root of 64001271 is about 400.0026478991.

The spelling of 64001271 in words is "sixty-four million, one thousand, two hundred seventy-one".