1409081 has 4 divisors (see below), whose sum is σ = 1457700. Its totient is φ = 1360464.

The previous prime is 1409069. The next prime is 1409101. The reversal of 1409081 is 1809041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 839056 + 570025 = 916^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 1409081 - 2⁶ = 1409017 is a prime.

It is a super-2 number, since 2×1409081² = 3971018529122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1409041) 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, 24266 + ... + 24323.

It is an arithmetic number, because the mean of its divisors is an integer number (364425).

2^1409081 is an apocalyptic number.

It is an amenable number.

1409081 is a deficient number, since it is larger than the sum of its proper divisors (48619).

1409081 is an equidigital number, since it uses as much as digits as its factorization.

1409081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48618.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1409081 is about 1187.0471768215. The cubic root of 1409081 is about 112.1102496435.

The spelling of 1409081 in words is "one million, four hundred nine thousand, eighty-one".