1485811921 has 8 divisors (see below), whose sum is σ = 1624140000. Its totient is φ = 1348026240.

The previous prime is 1485811919. The next prime is 1485811931. The reversal of 1485811921 is 1291185841.

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

It is not a de Polignac number, because 1485811921 - 2¹ = 1485811919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1485811931) 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, 129856 + ... + 140833.

It is an arithmetic number, because the mean of its divisors is an integer number (203017500).

Almost surely, 2^1485811921 is an apocalyptic number.

1485811921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1485811921 is a deficient number, since it is larger than the sum of its proper divisors (138328079).

1485811921 is a wasteful number, since it uses less digits than its factorization.

1485811921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271199.

The product of its digits is 23040, while the sum is 40.

The square root of 1485811921 is about 38546.2309571247. The cubic root of 1485811921 is about 1141.0936260671.

The spelling of 1485811921 in words is "one billion, four hundred eighty-five million, eight hundred eleven thousand, nine hundred twenty-one".