1983453065 has 16 divisors (see below), whose sum is σ = 2606121216. Its totient is φ = 1437177600.

The previous prime is 1983453037. The next prime is 1983453071. The reversal of 1983453065 is 5603543891.

It is not a de Polignac number, because 1983453065 - 2¹⁰ = 1983452041 is a prime.

It is a super-2 number, since 2×1983453065² = 7868172122115788450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51632 + ... + 81441.

It is an arithmetic number, because the mean of its divisors is an integer number (162882576).

Almost surely, 2^1983453065 is an apocalyptic number.

It is an amenable number.

1983453065 is a deficient number, since it is larger than the sum of its proper divisors (622668151).

1983453065 is a wasteful number, since it uses less digits than its factorization.

1983453065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133360.

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 1983453065 is about 44535.9749528401. The cubic root of 1983453065 is about 1256.4367845498.

The spelling of 1983453065 in words is "one billion, nine hundred eighty-three million, four hundred fifty-three thousand, sixty-five".