64121241 has 16 divisors (see below), whose sum is σ = 86486400. Its totient is φ = 42255360.

The previous prime is 64121231. The next prime is 64121249. The reversal of 64121241 is 14212146.

It is a happy number.

It is not a de Polignac number, because 64121241 - 2⁵ = 64121209 is a prime.

It is a super-2 number, since 2×64121241² = 8223067094760162, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64121249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142585 + ... + 143033.

It is an arithmetic number, because the mean of its divisors is an integer number (5405400).

Almost surely, 2^64121241 is an apocalyptic number.

It is an amenable number.

64121241 is a deficient number, since it is larger than the sum of its proper divisors (22365159).

64121241 is a wasteful number, since it uses less digits than its factorization.

64121241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896.

The product of its digits is 384, while the sum is 21.

The square root of 64121241 is about 8007.5739771794. The cubic root of 64121241 is about 400.2524260858.

Adding to 64121241 its reverse (14212146), we get a palindrome (78333387).

The spelling of 64121241 in words is "sixty-four million, one hundred twenty-one thousand, two hundred forty-one".