1409281 has 4 divisors (see below), whose sum is σ = 1427200. Its totient is φ = 1391364.

The previous prime is 1409263. The next prime is 1409299. The reversal of 1409281 is 1829041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1409263) and next prime (1409299).

It is a cyclic number.

It is not a de Polignac number, because 1409281 - 2⁹ = 1408769 is a prime.

It is a super-2 number, since 2×1409281² = 3972145873922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (1409231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8841 + ... + 8998.

It is an arithmetic number, because the mean of its divisors is an integer number (356800).

2^1409281 is an apocalyptic number.

It is an amenable number.

1409281 is a deficient number, since it is larger than the sum of its proper divisors (17919).

1409281 is an equidigital number, since it uses as much as digits as its factorization.

1409281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17918.

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

The square root of 1409281 is about 1187.1314164826. The cubic root of 1409281 is about 112.1155535707.

The spelling of 1409281 in words is "one million, four hundred nine thousand, two hundred eighty-one".