1229481 has 18 divisors (see below), whose sum is σ = 1953770. Its totient is φ = 744480.

The previous prime is 1229461. The next prime is 1229483. The reversal of 1229481 is 1849221.

It can be written as a sum of positive squares in only one way, i.e., 793881 + 435600 = 891^2 + 660^2 .

It is not a de Polignac number, because 1229481 - 2⁷ = 1229353 is a prime.

It is a super-2 number, since 2×1229481² = 3023247058722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1229483) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 525 + ... + 1653.

2^1229481 is an apocalyptic number.

1229481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1229481 is a deficient number, since it is larger than the sum of its proper divisors (724289).

1229481 is a wasteful number, since it uses less digits than its factorization.

1229481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1143 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1229481 is about 1108.8196426832. The cubic root of 1229481 is about 107.1290549840.

The spelling of 1229481 in words is "one million, two hundred twenty-nine thousand, four hundred eighty-one".