64306545 has 16 divisors (see below), whose sum is σ = 108306240. Its totient is φ = 32491584.

The previous prime is 64306537. The next prime is 64306549. The reversal of 64306545 is 54560346.

It is not a de Polignac number, because 64306545 - 2³ = 64306537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64306549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112534 + ... + 113103.

It is an arithmetic number, because the mean of its divisors is an integer number (6769140).

Almost surely, 2^64306545 is an apocalyptic number.

It is an amenable number.

64306545 is a deficient number, since it is larger than the sum of its proper divisors (43999695).

64306545 is a wasteful number, since it uses less digits than its factorization.

64306545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225664.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 64306545 is about 8019.1361754244. The cubic root of 64306545 is about 400.6376184833.

The spelling of 64306545 in words is "sixty-four million, three hundred six thousand, five hundred forty-five".