64813127 has 4 divisors (see below), whose sum is σ = 64839936. Its totient is φ = 64786320.

The previous prime is 64813097. The next prime is 64813153. The reversal of 64813127 is 72131846.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72131846 = 2 ⋅36065923.

It is a cyclic number.

It is not a de Polignac number, because 64813127 - 2⁸ = 64812871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64813093 and 64813102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64813327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9374 + ... + 14747.

It is an arithmetic number, because the mean of its divisors is an integer number (16209984).

Almost surely, 2^64813127 is an apocalyptic number.

64813127 is a deficient number, since it is larger than the sum of its proper divisors (26809).

64813127 is a wasteful number, since it uses less digits than its factorization.

64813127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26808.

The product of its digits is 8064, while the sum is 32.

The square root of 64813127 is about 8050.6600350530. The cubic root of 64813127 is about 401.6868905833.

The spelling of 64813127 in words is "sixty-four million, eight hundred thirteen thousand, one hundred twenty-seven".