64246545 has 48 divisors (see below), whose sum is σ = 122720832. Its totient is φ = 30833280.

The previous prime is 64246531. The next prime is 64246573. The reversal of 64246545 is 54564246.

64246545 is a `hidden beast` number, since 642 + 4 + 6 + 5 + 4 + 5 = 666.

It is not a de Polignac number, because 64246545 - 2⁸ = 64246289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52359 + ... + 53571.

It is an arithmetic number, because the mean of its divisors is an integer number (2556684).

Almost surely, 2^64246545 is an apocalyptic number.

It is an amenable number.

64246545 is a deficient number, since it is larger than the sum of its proper divisors (58474287).

64246545 is a wasteful number, since it uses less digits than its factorization.

64246545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 1339 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 64246545 is about 8015.3942510646. The cubic root of 64246545 is about 400.5129772712.

The spelling of 64246545 in words is "sixty-four million, two hundred forty-six thousand, five hundred forty-five".