1452021 has 16 divisors (see below), whose sum is σ = 2083968. Its totient is φ = 896000.

The previous prime is 1451969. The next prime is 1452047. The reversal of 1452021 is 1202541.

1452021 = T₅₄ + T₅₅ + ... + T₂₀₆.

It is a cyclic number.

It is not a de Polignac number, because 1452021 - 2⁷ = 1451893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1452221) 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 15 ways as a sum of consecutive naturals, for example, 3421 + ... + 3821.

It is an arithmetic number, because the mean of its divisors is an integer number (130248).

2^1452021 is an apocalyptic number.

It is an amenable number.

1452021 is a deficient number, since it is larger than the sum of its proper divisors (631947).

1452021 is a wasteful number, since it uses less digits than its factorization.

1452021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1452021 is about 1204.9983402478. The cubic root of 1452021 is about 113.2376807304.

Adding to 1452021 its reverse (1202541), we get a palindrome (2654562).

It can be divided in two parts, 14520 and 21, that added together give a palindrome (14541).

The spelling of 1452021 in words is "one million, four hundred fifty-two thousand, twenty-one".