1330023157 has 2 divisors, whose sum is σ = 1330023158. Its totient is φ = 1330023156.

The previous prime is 1330023137. The next prime is 1330023179. The reversal of 1330023157 is 7513200331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1298953681 + 31069476 = 36041^2 + 5574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1330023157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330023137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665011578 + 665011579.

It is an arithmetic number, because the mean of its divisors is an integer number (665011579).

Almost surely, 2^1330023157 is an apocalyptic number.

It is an amenable number.

1330023157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330023157 is an equidigital number, since it uses as much as digits as its factorization.

1330023157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 1330023157 is about 36469.4825436282. The cubic root of 1330023157 is about 1099.7308313853.

Adding to 1330023157 its reverse (7513200331), we get a palindrome (8843223488).

The spelling of 1330023157 in words is "one billion, three hundred thirty million, twenty-three thousand, one hundred fifty-seven".