1242895363 has 2 divisors, whose sum is σ = 1242895364. Its totient is φ = 1242895362.

The previous prime is 1242895343. The next prime is 1242895391. The reversal of 1242895363 is 3635982421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242895363 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242895343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621447681 + 621447682.

It is an arithmetic number, because the mean of its divisors is an integer number (621447682).

Almost surely, 2^1242895363 is an apocalyptic number.

1242895363 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242895363 is an equidigital number, since it uses as much as digits as its factorization.

1242895363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 43.

The square root of 1242895363 is about 35254.7211448339. The cubic root of 1242895363 is about 1075.1726026801.

The spelling of 1242895363 in words is "one billion, two hundred forty-two million, eight hundred ninety-five thousand, three hundred sixty-three".