601021 has 2 divisors, whose sum is σ = 601022. Its totient is φ = 601020.

The previous prime is 600983. The next prime is 601031. The reversal of 601021 is 120106.

It is an a-pointer prime, because the next prime (601031) can be obtained adding 601021 to its sum of digits (10).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 532900 + 68121 = 730^2 + 261^2 .

It is a cyclic number.

It is not a de Polignac number, because 601021 - 2⁷ = 600893 is a prime.

It is a super-2 number, since 2×601021² = 722452484882, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 600989 and 601007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (601031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300510 + 300511.

It is an arithmetic number, because the mean of its divisors is an integer number (300511).

2⁶⁰¹⁰²¹ is an apocalyptic number.

It is an amenable number.

601021 is a deficient number, since it is larger than the sum of its proper divisors (1).

601021 is an equidigital number, since it uses as much as digits as its factorization.

601021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 601021 is about 775.2554417739. The cubic root of 601021 is about 84.3910807942.

Adding to 601021 its reverse (120106), we get a palindrome (721127).

It can be divided in two parts, 60 and 1021, that added together give a triangular number (1081 = T₄₆).

The spelling of 601021 in words is "six hundred one thousand, twenty-one".