1380057529 has 2 divisors, whose sum is σ = 1380057530. Its totient is φ = 1380057528.

The previous prime is 1380057493. The next prime is 1380057541. The reversal of 1380057529 is 9257500831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1308485929 + 71571600 = 36173^2 + 8460^2 .

It is a cyclic number.

It is not a de Polignac number, because 1380057529 - 2¹⁹ = 1379533241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1380057491 and 1380057500.

It is not a weakly prime, because it can be changed into another prime (1380087529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690028764 + 690028765.

It is an arithmetic number, because the mean of its divisors is an integer number (690028765).

Almost surely, 2^1380057529 is an apocalyptic number.

It is an amenable number.

1380057529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380057529 is an equidigital number, since it uses as much as digits as its factorization.

1380057529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 1380057529 is about 37149.1255482548. The cubic root of 1380057529 is about 1113.3517521086.

The spelling of 1380057529 in words is "one billion, three hundred eighty million, fifty-seven thousand, five hundred twenty-nine".