1381979303 has 4 divisors (see below), whose sum is σ = 1382769408. Its totient is φ = 1381189200.

The previous prime is 1381979167. The next prime is 1381979323. The reversal of 1381979303 is 3039791831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3039791831 = 31 ⋅98057801.

It is a cyclic number.

It is not a de Polignac number, because 1381979303 - 2¹² = 1381975207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381979323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392423 + ... + 395928.

It is an arithmetic number, because the mean of its divisors is an integer number (345692352).

Almost surely, 2^1381979303 is an apocalyptic number.

1381979303 is a deficient number, since it is larger than the sum of its proper divisors (790105).

1381979303 is an equidigital number, since it uses as much as digits as its factorization.

1381979303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790104.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 1381979303 is about 37174.9822192291. The cubic root of 1381979303 is about 1113.8683049851.

The spelling of 1381979303 in words is "one billion, three hundred eighty-one million, nine hundred seventy-nine thousand, three hundred three".