64541537 has 8 divisors (see below), whose sum is σ = 71935200. Its totient is φ = 57547584.

The previous prime is 64541509. The next prime is 64541549. The reversal of 64541537 is 73514546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64541537 - 2¹⁸ = 64279393 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 64541497 and 64541506.

It is not an unprimeable number, because it can be changed into a prime (64541557) 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, 99587 + ... + 100232.

It is an arithmetic number, because the mean of its divisors is an integer number (8991900).

Almost surely, 2^64541537 is an apocalyptic number.

It is an amenable number.

64541537 is a deficient number, since it is larger than the sum of its proper divisors (7393663).

64541537 is a wasteful number, since it uses less digits than its factorization.

64541537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199855.

The product of its digits is 50400, while the sum is 35.

The square root of 64541537 is about 8033.7747665714. The cubic root of 64541537 is about 401.1250348582.

The spelling of 64541537 in words is "sixty-four million, five hundred forty-one thousand, five hundred thirty-seven".