64081193 has 4 divisors (see below), whose sum is σ = 69906768. Its totient is φ = 58255620.

The previous prime is 64081189. The next prime is 64081201. The reversal of 64081193 is 39118046.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64081193 - 2² = 64081189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64081133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2912771 + ... + 2912792.

It is an arithmetic number, because the mean of its divisors is an integer number (17476692).

Almost surely, 2^64081193 is an apocalyptic number.

It is an amenable number.

64081193 is a deficient number, since it is larger than the sum of its proper divisors (5825575).

64081193 is a wasteful number, since it uses less digits than its factorization.

64081193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5825574.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 64081193 is about 8005.0729540711. The cubic root of 64081193 is about 400.1690806026.

The spelling of 64081193 in words is "sixty-four million, eighty-one thousand, one hundred ninety-three".