1242941347 has 2 divisors, whose sum is σ = 1242941348. Its totient is φ = 1242941346.

The previous prime is 1242941339. The next prime is 1242941369. The reversal of 1242941347 is 7431492421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1242941347 - 2³ = 1242941339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242941317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621470673 + 621470674.

It is an arithmetic number, because the mean of its divisors is an integer number (621470674).

Almost surely, 2^1242941347 is an apocalyptic number.

1242941347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242941347 is an equidigital number, since it uses as much as digits as its factorization.

1242941347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The square root of 1242941347 is about 35255.3733067741. The cubic root of 1242941347 is about 1075.1858620766.

The spelling of 1242941347 in words is "one billion, two hundred forty-two million, nine hundred forty-one thousand, three hundred forty-seven".