1452421 has 2 divisors, whose sum is σ = 1452422. Its totient is φ = 1452420.

The previous prime is 1452419. The next prime is 1452433. The reversal of 1452421 is 1242541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1368900 + 83521 = 1170^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 1452421 - 2¹ = 1452419 is a prime.

It is a super-2 number, since 2×1452421² = 4219053522482, which contains 22 as substring.

Together with 1452419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1452461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726210 + 726211.

It is an arithmetic number, because the mean of its divisors is an integer number (726211).

2^1452421 is an apocalyptic number.

It is an amenable number.

1452421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1452421 is an equidigital number, since it uses as much as digits as its factorization.

1452421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320, while the sum is 19.

The square root of 1452421 is about 1205.1643041511. The cubic root of 1452421 is about 113.2480779432.

Adding to 1452421 its reverse (1242541), we get a palindrome (2694962).

The spelling of 1452421 in words is "one million, four hundred fifty-two thousand, four hundred twenty-one".