1330404247 has 2 divisors, whose sum is σ = 1330404248. Its totient is φ = 1330404246.

The previous prime is 1330404221. The next prime is 1330404253. The reversal of 1330404247 is 7424040331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1330404247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330404347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665202123 + 665202124.

It is an arithmetic number, because the mean of its divisors is an integer number (665202124).

Almost surely, 2^1330404247 is an apocalyptic number.

1330404247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330404247 is an equidigital number, since it uses as much as digits as its factorization.

1330404247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 1330404247 is about 36474.7069487885. The cubic root of 1330404247 is about 1099.8358562237.

Adding to 1330404247 its reverse (7424040331), we get a palindrome (8754444578).

The spelling of 1330404247 in words is "one billion, three hundred thirty million, four hundred four thousand, two hundred forty-seven".