64546241 has 4 divisors (see below), whose sum is σ = 66290772. Its totient is φ = 62801712.

The previous prime is 64546231. The next prime is 64546253. The reversal of 64546241 is 14264546.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29203216 + 35343025 = 5404^2 + 5945^2 .

It is a cyclic number.

It is not a de Polignac number, because 64546241 - 2²² = 60351937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64546198 and 64546207.

It is not an unprimeable number, because it can be changed into a prime (64546201) 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, 872210 + ... + 872283.

It is an arithmetic number, because the mean of its divisors is an integer number (16572693).

Almost surely, 2^64546241 is an apocalyptic number.

It is an amenable number.

64546241 is a deficient number, since it is larger than the sum of its proper divisors (1744531).

64546241 is a wasteful number, since it uses less digits than its factorization.

64546241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744530.

The product of its digits is 23040, while the sum is 32.

The square root of 64546241 is about 8034.0675252328. The cubic root of 64546241 is about 401.1347797264.

The spelling of 64546241 in words is "sixty-four million, five hundred forty-six thousand, two hundred forty-one".