1383751811 has 8 divisors (see below), whose sum is σ = 1500917040. Its totient is φ = 1268118432.

The previous prime is 1383751801. The next prime is 1383751823. The reversal of 1383751811 is 1181573831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1383751811 - 2¹⁰ = 1383750787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1383751801) 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 7 ways as a sum of consecutive naturals, for example, 381080 + ... + 384693.

It is an arithmetic number, because the mean of its divisors is an integer number (187614630).

Almost surely, 2^1383751811 is an apocalyptic number.

1383751811 is a deficient number, since it is larger than the sum of its proper divisors (117165229).

1383751811 is a wasteful number, since it uses less digits than its factorization.

1383751811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765925.

The product of its digits is 20160, while the sum is 38.

The square root of 1383751811 is about 37198.8146450932. The cubic root of 1383751811 is about 1114.3443123539.

The spelling of 1383751811 in words is "one billion, three hundred eighty-three million, seven hundred fifty-one thousand, eight hundred eleven".