65241421 has 8 divisors (see below), whose sum is σ = 78486080. Its totient is φ = 52977888.

The previous prime is 65241419. The next prime is 65241437. The reversal of 65241421 is 12414256.

It is a happy number.

65241421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 65241421 - 2¹ = 65241419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65241481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245136 + ... + 245401.

It is an arithmetic number, because the mean of its divisors is an integer number (9810760).

Almost surely, 2^65241421 is an apocalyptic number.

It is an amenable number.

65241421 is a deficient number, since it is larger than the sum of its proper divisors (13244659).

65241421 is a wasteful number, since it uses less digits than its factorization.

65241421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490563.

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

The square root of 65241421 is about 8077.2161664772. The cubic root of 65241421 is about 402.5697493671.

Adding to 65241421 its reverse (12414256), we get a palindrome (77655677).

The spelling of 65241421 in words is "sixty-five million, two hundred forty-one thousand, four hundred twenty-one".