1385851363 has 4 divisors (see below), whose sum is σ = 1492455328. Its totient is φ = 1279247400.

The previous prime is 1385851351. The next prime is 1385851381. The reversal of 1385851363 is 3631585831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3631585831 = 179 ⋅20288189.

It is a cyclic number.

It is not a de Polignac number, because 1385851363 - 2⁵ = 1385851331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1380851363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53301963 + ... + 53301988.

It is an arithmetic number, because the mean of its divisors is an integer number (373113832).

Almost surely, 2^1385851363 is an apocalyptic number.

1385851363 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1385851363 is a deficient number, since it is larger than the sum of its proper divisors (106603965).

1385851363 is a wasteful number, since it uses less digits than its factorization.

1385851363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106603964.

The product of its digits is 259200, while the sum is 43.

The square root of 1385851363 is about 37227.0246326509. The cubic root of 1385851363 is about 1114.9076218318.

The spelling of 1385851363 in words is "one billion, three hundred eighty-five million, eight hundred fifty-one thousand, three hundred sixty-three".