1242763 has 2 divisors, whose sum is σ = 1242764. Its totient is φ = 1242762.

The previous prime is 1242757. The next prime is 1242767. The reversal of 1242763 is 3672421.

It is a strong prime.

It is an emirp because it is prime and its reverse (3672421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1242763 - 2⁹ = 1242251 is a prime.

It is a d-powerful number, because it can be written as 1 + 2¹⁹ + 4² + 2¹⁹ + 7⁵ + 6³ + 3¹¹ .

It is not a weakly prime, because it can be changed into another prime (1242767) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621381 + 621382.

It is an arithmetic number, because the mean of its divisors is an integer number (621382).

2^1242763 is an apocalyptic number.

1242763 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242763 is an equidigital number, since it uses as much as digits as its factorization.

1242763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 25.

The square root of 1242763 is about 1114.7928058613. The cubic root of 1242763 is about 107.5134434242.

The spelling of 1242763 in words is "one million, two hundred forty-two thousand, seven hundred sixty-three".