64125111 has 8 divisors (see below), whose sum is σ = 85582080. Its totient is φ = 42709112.

The previous prime is 64125109. The next prime is 64125121. The reversal of 64125111 is 11152146.

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 64125111 - 2¹ = 64125109 is a prime.

It is a super-2 number, since 2×64125111² = 8224059721524642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64125121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6381 + ... + 12998.

It is an arithmetic number, because the mean of its divisors is an integer number (10697760).

Almost surely, 2^64125111 is an apocalyptic number.

64125111 is a deficient number, since it is larger than the sum of its proper divisors (21456969).

64125111 is a wasteful number, since it uses less digits than its factorization.

64125111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20485.

The product of its digits is 240, while the sum is 21.

The square root of 64125111 is about 8007.8156197555. The cubic root of 64125111 is about 400.2604782575.

Adding to 64125111 its reverse (11152146), we get a palindrome (75277257).

It can be divided in two parts, 641 and 25111, that added together give a palindrome (25752).

The spelling of 64125111 in words is "sixty-four million, one hundred twenty-five thousand, one hundred eleven".