1489072451 has 2 divisors, whose sum is σ = 1489072452. Its totient is φ = 1489072450.

The previous prime is 1489072433. The next prime is 1489072513. The reversal of 1489072451 is 1542709841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1489072451 - 2²² = 1484878147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1489072399 and 1489072408.

It is not a weakly prime, because it can be changed into another prime (1489072411) 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 as a sum of consecutive naturals, namely, 744536225 + 744536226.

It is an arithmetic number, because the mean of its divisors is an integer number (744536226).

Almost surely, 2^1489072451 is an apocalyptic number.

1489072451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1489072451 is an equidigital number, since it uses as much as digits as its factorization.

1489072451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 1489072451 is about 38588.5015386708. The cubic root of 1489072451 is about 1141.9277046685.

The spelling of 1489072451 in words is "one billion, four hundred eighty-nine million, seventy-two thousand, four hundred fifty-one".