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1481089 = 12172

1481089 has 3 divisors (see below), whose sum is σ = 1482307. Its totient is φ = 1479872.

The previous prime is 1481071. The next prime is 1481099. The reversal of 1481089 is 9801841.

Multipling 1481089 by its product of nonzero digits (2304), we get a square (3412429056 = 584162).

The square root of 1481089 is 1217.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 497025 + 984064 = 705^2 + 992^2 .

It is not a de Polignac number, because 1481089 - 217 = 1350017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1481089.

It is not an unprimeable number, because it can be changed into a prime (1481099) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 609 + ... + 1825.

21481089 is an apocalyptic number.

1481089 is the 1217-th square number.

1481089 is the 609-th centered octagonal number.

It is an amenable number.

1481089 is a deficient number, since it is larger than the sum of its proper divisors (1218).

1481089 is an frugal number, since it uses more digits than its factorization.

1481089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434 (or 1217 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The cubic root of 1481089 is about 113.9883285476.

The spelling of 1481089 in words is "one million, four hundred eighty-one thousand, eighty-nine".

Divisors: 1 1217 1481089