1452491 has 2 divisors, whose sum is σ = 1452492. Its totient is φ = 1452490.

The previous prime is 1452487. The next prime is 1452511. The reversal of 1452491 is 1942541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1452491 - 2² = 1452487 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1452491.

It is not a weakly prime, because it can be changed into another prime (1452421) 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 as a sum of consecutive naturals, namely, 726245 + 726246.

It is an arithmetic number, because the mean of its divisors is an integer number (726246).

2^1452491 is an apocalyptic number.

1452491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1452491 is an equidigital number, since it uses as much as digits as its factorization.

1452491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 26.

The square root of 1452491 is about 1205.1933454844. The cubic root of 1452491 is about 113.2498972591.

The spelling of 1452491 in words is "one million, four hundred fifty-two thousand, four hundred ninety-one".