64142111 has 8 divisors (see below), whose sum is σ = 71601024. Its totient is φ = 56954520.

The previous prime is 64142093. The next prime is 64142129. The reversal of 64142111 is 11124146.

It is an interprime number because it is at equal distance from previous prime (64142093) and next prime (64142129).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64142111 - 2⁶ = 64142047 is a prime.

It is a super-2 number, since 2×64142111² = 8228420807072642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64142191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67331 + ... + 68276.

It is an arithmetic number, because the mean of its divisors is an integer number (8950128).

Almost surely, 2^64142111 is an apocalyptic number.

64142111 is a deficient number, since it is larger than the sum of its proper divisors (7458913).

64142111 is a wasteful number, since it uses less digits than its factorization.

64142111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135661.

The product of its digits is 192, while the sum is 20.

The square root of 64142111 is about 8008.8770124157. The cubic root of 64142111 is about 400.2958457177.

Adding to 64142111 its reverse (11124146), we get a palindrome (75266257).

The spelling of 64142111 in words is "sixty-four million, one hundred forty-two thousand, one hundred eleven".