64537345 has 8 divisors (see below), whose sum is σ = 79092864. Its totient is φ = 50531184.

The previous prime is 64537339. The next prime is 64537349. The reversal of 64537345 is 54373546.

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 64537345 - 2²³ = 56148737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64537349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137079 + ... + 137548.

It is an arithmetic number, because the mean of its divisors is an integer number (9886608).

Almost surely, 2^64537345 is an apocalyptic number.

It is an amenable number.

64537345 is a deficient number, since it is larger than the sum of its proper divisors (14555519).

64537345 is a wasteful number, since it uses less digits than its factorization.

64537345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274679.

The product of its digits is 151200, while the sum is 37.

The square root of 64537345 is about 8033.5138638083. The cubic root of 64537345 is about 401.1163502568.

The spelling of 64537345 in words is "sixty-four million, five hundred thirty-seven thousand, three hundred forty-five".