64122541 has 4 divisors (see below), whose sum is σ = 73282912. Its totient is φ = 54962172.

The previous prime is 64122533. The next prime is 64122559. The reversal of 64122541 is 14522146.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14522146 = 2 ⋅7261073.

It is a cyclic number.

It is not a de Polignac number, because 64122541 - 2³ = 64122533 is a prime.

It is a super-2 number, since 2×64122541² = 8223400528593362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64122841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4580175 + ... + 4580188.

It is an arithmetic number, because the mean of its divisors is an integer number (18320728).

Almost surely, 2^64122541 is an apocalyptic number.

It is an amenable number.

64122541 is a deficient number, since it is larger than the sum of its proper divisors (9160371).

64122541 is an equidigital number, since it uses as much as digits as its factorization.

64122541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9160370.

The product of its digits is 1920, while the sum is 25.

The square root of 64122541 is about 8007.6551499175. The cubic root of 64122541 is about 400.2551309859.

Adding to 64122541 its reverse (14522146), we get a palindrome (78644687).

The spelling of 64122541 in words is "sixty-four million, one hundred twenty-two thousand, five hundred forty-one".