1146021 has 16 divisors (see below), whose sum is σ = 1689984. Its totient is φ = 687104.

The previous prime is 1145999. The next prime is 1146037. The reversal of 1146021 is 1206411.

It is a cyclic number.

It is not a de Polignac number, because 1146021 - 2⁹ = 1145509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685 + ... + 1661.

It is an arithmetic number, because the mean of its divisors is an integer number (105624).

2^1146021 is an apocalyptic number.

It is an amenable number.

1146021 is a deficient number, since it is larger than the sum of its proper divisors (543963).

1146021 is a wasteful number, since it uses less digits than its factorization.

1146021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1146021 is about 1070.5237036143. The cubic root of 1146021 is about 104.6479821589.

The spelling of 1146021 in words is "one million, one hundred forty-six thousand, twenty-one".