1209481 has 8 divisors (see below), whose sum is σ = 1488704. Its totient is φ = 956880.

The previous prime is 1209469. The next prime is 1209487. The reversal of 1209481 is 1849021.

It is a happy number.

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 1209481 - 2⁷ = 1209353 is a prime.

It is a super-2 number, since 2×1209481² = 2925688578722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1209487) 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, 6555 + ... + 6736.

It is an arithmetic number, because the mean of its divisors is an integer number (186088).

2^1209481 is an apocalyptic number.

It is an amenable number.

1209481 is a deficient number, since it is larger than the sum of its proper divisors (279223).

1209481 is a wasteful number, since it uses less digits than its factorization.

1209481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13311.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1209481 is about 1099.7640656068. The cubic root of 1209481 is about 106.5449860279.

The spelling of 1209481 in words is "one million, two hundred nine thousand, four hundred eighty-one".