64125441 has 6 divisors (see below), whose sum is σ = 92625650. Its totient is φ = 42750288.

The previous prime is 64125433. The next prime is 64125443. The reversal of 64125441 is 14452146.

It can be written as a sum of positive squares in only one way, i.e., 57699216 + 6426225 = 7596^2 + 2535^2 .

It is not a de Polignac number, because 64125441 - 2³ = 64125433 is a prime.

It is a super-2 number, since 2×64125441² = 8224144366888962, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64125443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3562516 + ... + 3562533.

Almost surely, 2^64125441 is an apocalyptic number.

It is an amenable number.

64125441 is a deficient number, since it is larger than the sum of its proper divisors (28500209).

64125441 is a wasteful number, since it uses less digits than its factorization.

64125441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7125055 (or 7125052 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 64125441 is about 8007.8362245990. The cubic root of 64125441 is about 400.2611648618.

Adding to 64125441 its reverse (14452146), we get a palindrome (78577587).

The spelling of 64125441 in words is "sixty-four million, one hundred twenty-five thousand, four hundred forty-one".