601422421 has 4 divisors (see below), whose sum is σ = 602502732. Its totient is φ = 600342112.

The previous prime is 601422403. The next prime is 601422431. The reversal of 601422421 is 124224106.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124224106 = 2 ⋅62112053.

It can be written as a sum of positive squares in 2 ways, for example, as 89984196 + 511438225 = 9486^2 + 22615^2 .

It is a cyclic number.

It is not a de Polignac number, because 601422421 - 2⁵ = 601422389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 601422392 and 601422401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601422431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539320 + ... + 540433.

It is an arithmetic number, because the mean of its divisors is an integer number (150625683).

Almost surely, 2^601422421 is an apocalyptic number.

It is an amenable number.

601422421 is a deficient number, since it is larger than the sum of its proper divisors (1080311).

601422421 is a wasteful number, since it uses less digits than its factorization.

601422421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080310.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 601422421 is about 24523.9152869194. The cubic root of 601422421 is about 844.0986483714.

Adding to 601422421 its reverse (124224106), we get a palindrome (725646527).

The spelling of 601422421 in words is "six hundred one million, four hundred twenty-two thousand, four hundred twenty-one".