1481221 has 24 divisors (see below), whose sum is σ = 1906080. Its totient is φ = 1143072.

The previous prime is 1481219. The next prime is 1481231. The reversal of 1481221 is 1221841.

It is a happy number.

It is not a de Polignac number, because 1481221 - 2¹ = 1481219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an Ulam number.

1481221 is a modest number, since divided by 1221 gives 148 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34426 + ... + 34468.

It is an arithmetic number, because the mean of its divisors is an integer number (79420).

2^1481221 is an apocalyptic number.

1481221 is the 703-rd octagonal number.

It is an amenable number.

1481221 is a deficient number, since it is larger than the sum of its proper divisors (424859).

1481221 is a wasteful number, since it uses less digits than its factorization.

1481221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 106 counting only the distinct ones).

The product of its digits is 128, while the sum is 19.

The square root of 1481221 is about 1217.0542305091. The cubic root of 1481221 is about 113.9917147975.

It can be divided in two parts, 148 and 1221, that added together give a square (1369 = 37²).

The spelling of 1481221 in words is "one million, four hundred eighty-one thousand, two hundred twenty-one".