1920716503 has 4 divisors (see below), whose sum is σ = 1953271080. Its totient is φ = 1888161928.

The previous prime is 1920716489. The next prime is 1920716513. The reversal of 1920716503 is 3056170291.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1920716503 - 2²⁵ = 1887162071 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 (1920716513) 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, 16277200 + ... + 16277317.

It is an arithmetic number, because the mean of its divisors is an integer number (488317770).

Almost surely, 2^1920716503 is an apocalyptic number.

1920716503 is a deficient number, since it is larger than the sum of its proper divisors (32554577).

1920716503 is an equidigital number, since it uses as much as digits as its factorization.

1920716503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32554576.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 1920716503 is about 43825.9797722766. The cubic root of 1920716503 is about 1243.0475901960.

Adding to 1920716503 its reverse (3056170291), we get a palindrome (4976886794).

The spelling of 1920716503 in words is "one billion, nine hundred twenty million, seven hundred sixteen thousand, five hundred three".