64242131 has 2 divisors, whose sum is σ = 64242132. Its totient is φ = 64242130.

The previous prime is 64242119. The next prime is 64242169. The reversal of 64242131 is 13124246.

64242131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64242131 - 2⁶ = 64242067 is a prime.

It is a super-2 number, since 2×64242131² = 8254102790842322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64242097 and 64242106.

It is not a weakly prime, because it can be changed into another prime (64242631) 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 as a sum of consecutive naturals, namely, 32121065 + 32121066.

It is an arithmetic number, because the mean of its divisors is an integer number (32121066).

Almost surely, 2^64242131 is an apocalyptic number.

64242131 is a deficient number, since it is larger than the sum of its proper divisors (1).

64242131 is an equidigital number, since it uses as much as digits as its factorization.

64242131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 64242131 is about 8015.1189011767. The cubic root of 64242131 is about 400.5038047688.

Adding to 64242131 its reverse (13124246), we get a palindrome (77366377).

The spelling of 64242131 in words is "sixty-four million, two hundred forty-two thousand, one hundred thirty-one".