1405016243 has 2 divisors, whose sum is σ = 1405016244. Its totient is φ = 1405016242.

The previous prime is 1405016219. The next prime is 1405016269. The reversal of 1405016243 is 3426105041.

It is an a-pointer prime, because the next prime (1405016269) can be obtained adding 1405016243 to its sum of digits (26).

It is a weak prime.

It is an emirp because it is prime and its reverse (3426105041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1405016243 - 2⁸ = 1405015987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1405015243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702508121 + 702508122.

It is an arithmetic number, because the mean of its divisors is an integer number (702508122).

Almost surely, 2^1405016243 is an apocalyptic number.

1405016243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405016243 is an equidigital number, since it uses as much as digits as its factorization.

1405016243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1405016243 is about 37483.5462970088. The cubic root of 1405016243 is about 1120.0234484355.

The spelling of 1405016243 in words is "one billion, four hundred five million, sixteen thousand, two hundred forty-three".