1456420387 has 2 divisors, whose sum is σ = 1456420388. Its totient is φ = 1456420386.

The previous prime is 1456420367. The next prime is 1456420411. The reversal of 1456420387 is 7830246541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1456420387 - 2²³ = 1448031779 is a prime.

It is not a weakly prime, because it can be changed into another prime (1456420367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728210193 + 728210194.

It is an arithmetic number, because the mean of its divisors is an integer number (728210194).

Almost surely, 2^1456420387 is an apocalyptic number.

1456420387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1456420387 is an equidigital number, since it uses as much as digits as its factorization.

1456420387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 1456420387 is about 38163.0762255875. The cubic root of 1456420387 is about 1133.5192932937.

The spelling of 1456420387 in words is "one billion, four hundred fifty-six million, four hundred twenty thousand, three hundred eighty-seven".