64244121 has 16 divisors (see below), whose sum is σ = 88731648. Its totient is φ = 41302800.

The previous prime is 64244101. The next prime is 64244197. The reversal of 64244121 is 12144246.

It is a happy number.

64244121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64244121 - 2⁹ = 64243609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64244091 and 64244100.

It is not an unprimeable number, because it can be changed into a prime (64244101) 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 15 ways as a sum of consecutive naturals, for example, 29740 + ... + 31826.

It is an arithmetic number, because the mean of its divisors is an integer number (5545728).

Almost surely, 2^64244121 is an apocalyptic number.

It is an amenable number.

64244121 is a deficient number, since it is larger than the sum of its proper divisors (24487527).

64244121 is a wasteful number, since it uses less digits than its factorization.

64244121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452.

The product of its digits is 1536, while the sum is 24.

The square root of 64244121 is about 8015.2430406071. The cubic root of 64244121 is about 400.5079401357.

Adding to 64244121 its reverse (12144246), we get a palindrome (76388367).

The spelling of 64244121 in words is "sixty-four million, two hundred forty-four thousand, one hundred twenty-one".