64161113 has 4 divisors (see below), whose sum is σ = 64493748. Its totient is φ = 63828480.

The previous prime is 64161107. The next prime is 64161121. The reversal of 64161113 is 31116146.

64161113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39589264 + 24571849 = 6292^2 + 4957^2 .

It is a cyclic number.

It is not a de Polignac number, because 64161113 - 2⁸ = 64160857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64161133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166028 + ... + 166413.

It is an arithmetic number, because the mean of its divisors is an integer number (16123437).

Almost surely, 2^64161113 is an apocalyptic number.

It is an amenable number.

64161113 is a deficient number, since it is larger than the sum of its proper divisors (332635).

64161113 is a wasteful number, since it uses less digits than its factorization.

64161113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332634.

The product of its digits is 432, while the sum is 23.

The square root of 64161113 is about 8010.0632332086. The cubic root of 64161113 is about 400.3353708208.

Adding to 64161113 its reverse (31116146), we get a palindrome (95277259).

The spelling of 64161113 in words is "sixty-four million, one hundred sixty-one thousand, one hundred thirteen".