64193061 has 16 divisors (see below), whose sum is σ = 87362624. Its totient is φ = 41917824.

The previous prime is 64193057. The next prime is 64193089. The reversal of 64193061 is 16039146.

It is not a de Polignac number, because 64193061 - 2² = 64193057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64193011) 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, 33450 + ... + 35316.

It is an arithmetic number, because the mean of its divisors is an integer number (5460164).

Almost surely, 2^64193061 is an apocalyptic number.

It is an amenable number.

64193061 is a deficient number, since it is larger than the sum of its proper divisors (23169563).

64193061 is a wasteful number, since it uses less digits than its factorization.

64193061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 64193061 is about 8012.0572264556. The cubic root of 64193061 is about 400.4018066600.

The spelling of 64193061 in words is "sixty-four million, one hundred ninety-three thousand, sixty-one".