1385307337 has 4 divisors (see below), whose sum is σ = 1385398036. Its totient is φ = 1385216640.

The previous prime is 1385307331. The next prime is 1385307359. The reversal of 1385307337 is 7337035831.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 747694336 + 637613001 = 27344^2 + 25251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1385307337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1385307337.

It is not an unprimeable number, because it can be changed into a prime (1385307331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16188 + ... + 55069.

It is an arithmetic number, because the mean of its divisors is an integer number (346349509).

Almost surely, 2^1385307337 is an apocalyptic number.

It is an amenable number.

1385307337 is a deficient number, since it is larger than the sum of its proper divisors (90699).

1385307337 is an equidigital number, since it uses as much as digits as its factorization.

1385307337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90698.

The product of its (nonzero) digits is 158760, while the sum is 40.

The square root of 1385307337 is about 37219.7170462109. The cubic root of 1385307337 is about 1114.7617143811.

The spelling of 1385307337 in words is "one billion, three hundred eighty-five million, three hundred seven thousand, three hundred thirty-seven".