1481809453 has 8 divisors (see below), whose sum is σ = 1506915360. Its totient is φ = 1456791600.

The previous prime is 1481809447. The next prime is 1481809501. The reversal of 1481809453 is 3549081841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1481809453 - 2⁵ = 1481809421 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 (1481809253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12378 + ... + 55828.

It is an arithmetic number, because the mean of its divisors is an integer number (188364420).

Almost surely, 2^1481809453 is an apocalyptic number.

It is an amenable number.

1481809453 is a deficient number, since it is larger than the sum of its proper divisors (25105907).

1481809453 is an equidigital number, since it uses as much as digits as its factorization.

With its predecessor (1481809452) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (44027).

1481809453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44027.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 1481809453 is about 38494.2781852057. The cubic root of 1481809453 is about 1140.0680817553.

The spelling of 1481809453 in words is "one billion, four hundred eighty-one million, eight hundred nine thousand, four hundred fifty-three".