1385012611 has 2 divisors, whose sum is σ = 1385012612. Its totient is φ = 1385012610.

The previous prime is 1385012561. The next prime is 1385012621. The reversal of 1385012611 is 1162105831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1385012611 - 2⁹ = 1385012099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1385012611.

It is not a weakly prime, because it can be changed into another prime (1385012621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692506305 + 692506306.

It is an arithmetic number, because the mean of its divisors is an integer number (692506306).

Almost surely, 2^1385012611 is an apocalyptic number.

1385012611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385012611 is an equidigital number, since it uses as much as digits as its factorization.

1385012611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1385012611 is about 37215.7575631613. The cubic root of 1385012611 is about 1114.6826530891.

The spelling of 1385012611 in words is "one billion, three hundred eighty-five million, twelve thousand, six hundred eleven".