1980144903 has 32 divisors (see below), whose sum is σ = 2921529600. Its totient is φ = 1182988800.

The previous prime is 1980144893. The next prime is 1980144919. The reversal of 1980144903 is 3094410891.

It is not a de Polignac number, because 1980144903 - 2⁶ = 1980144839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980124903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 757663 + ... + 760271.

It is an arithmetic number, because the mean of its divisors is an integer number (91297800).

Almost surely, 2^1980144903 is an apocalyptic number.

1980144903 is a deficient number, since it is larger than the sum of its proper divisors (941384697).

1980144903 is a wasteful number, since it uses less digits than its factorization.

1980144903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1980144903 is about 44498.8191191632. The cubic root of 1980144903 is about 1255.7378671771.

The spelling of 1980144903 in words is "one billion, nine hundred eighty million, one hundred forty-four thousand, nine hundred three".