1061021 has 8 divisors (see below), whose sum is σ = 1210104. Its totient is φ = 921600.

The previous prime is 1060993. The next prime is 1061033. The reversal of 1061021 is 1201601.

It can be written as a sum of positive squares in 4 ways, for example, as 148996 + 912025 = 386^2 + 955^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1061021 is a prime.

It is a super-2 number, since 2×1061021² = 2251531124882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1060993 and 1061011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1060021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2180 + ... + 2621.

It is an arithmetic number, because the mean of its divisors is an integer number (151263).

2^1061021 is an apocalyptic number.

It is an amenable number.

1061021 is a deficient number, since it is larger than the sum of its proper divisors (149083).

1061021 is a wasteful number, since it uses less digits than its factorization.

1061021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4831.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1061021 is about 1030.0587361893. The cubic root of 1061021 is about 101.9940083626.

Adding to 1061021 its reverse (1201601), we get a palindrome (2262622).

The spelling of 1061021 in words is "one million, sixty-one thousand, twenty-one".