1385622853 has 2 divisors, whose sum is σ = 1385622854. Its totient is φ = 1385622852.

The previous prime is 1385622827. The next prime is 1385622857. The reversal of 1385622853 is 3582265831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1019971969 + 365650884 = 31937^2 + 19122^2 .

It is an emirp because it is prime and its reverse (3582265831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1385622853 - 2¹⁷ = 1385491781 is a prime.

It is a super-3 number, since 3×1385622853³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385622857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692811426 + 692811427.

It is an arithmetic number, because the mean of its divisors is an integer number (692811427).

Almost surely, 2^1385622853 is an apocalyptic number.

It is an amenable number.

1385622853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385622853 is an equidigital number, since it uses as much as digits as its factorization.

1385622853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 43.

The square root of 1385622853 is about 37223.9553647916. The cubic root of 1385622853 is about 1114.8463402371.

The spelling of 1385622853 in words is "one billion, three hundred eighty-five million, six hundred twenty-two thousand, eight hundred fifty-three".