1331224159 has 2 divisors, whose sum is σ = 1331224160. Its totient is φ = 1331224158.

The previous prime is 1331224019. The next prime is 1331224163. The reversal of 1331224159 is 9514221331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331224159 - 2¹³ = 1331215967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1331224159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331224459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665612079 + 665612080.

It is an arithmetic number, because the mean of its divisors is an integer number (665612080).

Almost surely, 2^1331224159 is an apocalyptic number.

1331224159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331224159 is an equidigital number, since it uses as much as digits as its factorization.

1331224159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 31.

The square root of 1331224159 is about 36485.9446773686. The cubic root of 1331224159 is about 1100.0617483243.

The spelling of 1331224159 in words is "one billion, three hundred thirty-one million, two hundred twenty-four thousand, one hundred fifty-nine".