1383156867 has 4 divisors (see below), whose sum is σ = 1844209160. Its totient is φ = 922104576.

The previous prime is 1383156857. The next prime is 1383156881. The reversal of 1383156867 is 7686513831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7686513831 = 3 ⋅2562171277.

It is not a de Polignac number, because 1383156867 - 2⁷ = 1383156739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1383156857) 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 3 ways as a sum of consecutive naturals, for example, 230526142 + ... + 230526147.

It is an arithmetic number, because the mean of its divisors is an integer number (461052290).

Almost surely, 2^1383156867 is an apocalyptic number.

1383156867 is a deficient number, since it is larger than the sum of its proper divisors (461052293).

1383156867 is an equidigital number, since it uses as much as digits as its factorization.

1383156867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461052292.

The product of its digits is 725760, while the sum is 48.

The square root of 1383156867 is about 37190.8169713977. The cubic root of 1383156867 is about 1114.1845853723.

The spelling of 1383156867 in words is "one billion, three hundred eighty-three million, one hundred fifty-six thousand, eight hundred sixty-seven".