1385034569 has 2 divisors, whose sum is σ = 1385034570. Its totient is φ = 1385034568.

The previous prime is 1385034509. The next prime is 1385034593. The reversal of 1385034569 is 9654305831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1356817225 + 28217344 = 36835^2 + 5312^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1385034569 is a prime.

It is a super-2 number, since 2×1385034569² = 3836641514650031522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1385034509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692517284 + 692517285.

It is an arithmetic number, because the mean of its divisors is an integer number (692517285).

Almost surely, 2^1385034569 is an apocalyptic number.

It is an amenable number.

1385034569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385034569 is an equidigital number, since it uses as much as digits as its factorization.

1385034569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 1385034569 is about 37216.0525714375. The cubic root of 1385034569 is about 1114.6885437869.

The spelling of 1385034569 in words is "one billion, three hundred eighty-five million, thirty-four thousand, five hundred sixty-nine".