385227013 has 2 divisors, whose sum is σ = 385227014. Its totient is φ = 385227012.

The previous prime is 385226983. The next prime is 385227047. The reversal of 385227013 is 310722583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379548324 + 5678689 = 19482^2 + 2383^2 .

It is a cyclic number.

It is not a de Polignac number, because 385227013 - 2²¹ = 383129861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385227113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192613506 + 192613507.

It is an arithmetic number, because the mean of its divisors is an integer number (192613507).

Almost surely, 2^385227013 is an apocalyptic number.

It is an amenable number.

385227013 is a deficient number, since it is larger than the sum of its proper divisors (1).

385227013 is an equidigital number, since it uses as much as digits as its factorization.

385227013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 385227013 is about 19627.2008447460. The cubic root of 385227013 is about 727.6215912935.

Adding to 385227013 its reverse (310722583), we get a palindrome (695949596).

The spelling of 385227013 in words is "three hundred eighty-five million, two hundred twenty-seven thousand, thirteen".