1420243147 has 2 divisors, whose sum is σ = 1420243148. Its totient is φ = 1420243146.

The previous prime is 1420243127. The next prime is 1420243151. The reversal of 1420243147 is 7413420241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420243147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420243127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710121573 + 710121574.

It is an arithmetic number, because the mean of its divisors is an integer number (710121574).

Almost surely, 2^1420243147 is an apocalyptic number.

1420243147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420243147 is an equidigital number, since it uses as much as digits as its factorization.

1420243147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 1420243147 is about 37686.1134504475. The cubic root of 1420243147 is about 1124.0550147103.

Adding to 1420243147 its reverse (7413420241), we get a palindrome (8833663388).

The spelling of 1420243147 in words is "one billion, four hundred twenty million, two hundred forty-three thousand, one hundred forty-seven".