1385252263 has 2 divisors, whose sum is σ = 1385252264. Its totient is φ = 1385252262.

The previous prime is 1385252261. The next prime is 1385252273. The reversal of 1385252263 is 3622525831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1385252263 - 2¹ = 1385252261 is a prime.

Together with 1385252261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385252261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692626131 + 692626132.

It is an arithmetic number, because the mean of its divisors is an integer number (692626132).

Almost surely, 2^1385252263 is an apocalyptic number.

1385252263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385252263 is an equidigital number, since it uses as much as digits as its factorization.

1385252263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 37.

The square root of 1385252263 is about 37218.9771890631. The cubic root of 1385252263 is about 1114.7469414378.

The spelling of 1385252263 in words is "one billion, three hundred eighty-five million, two hundred fifty-two thousand, two hundred sixty-three".