64132517 has 8 divisors (see below), whose sum is σ = 67987800. Its totient is φ = 60286464.

The previous prime is 64132511. The next prime is 64132531. The reversal of 64132517 is 71523146.

It can be written as a sum of positive squares in 4 ways, for example, as 5134756 + 58997761 = 2266^2 + 7681^2 .

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 64132517 - 2¹⁰ = 64131493 is a prime.

It is a super-2 number, since 2×64132517² = 8225959473510578, which contains 22 as substring.

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 64132517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64132511) 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, 16409 + ... + 19937.

It is an arithmetic number, because the mean of its divisors is an integer number (8498475).

Almost surely, 2^64132517 is an apocalyptic number.

It is an amenable number.

64132517 is a deficient number, since it is larger than the sum of its proper divisors (3855283).

64132517 is a wasteful number, since it uses less digits than its factorization.

64132517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4615.

The product of its digits is 5040, while the sum is 29.

The square root of 64132517 is about 8008.2780296391. The cubic root of 64132517 is about 400.2758867558.

The spelling of 64132517 in words is "sixty-four million, one hundred thirty-two thousand, five hundred seventeen".