1340081 has 4 divisors (see below), whose sum is σ = 1342464. Its totient is φ = 1337700.

The previous prime is 1340071. The next prime is 1340083. The reversal of 1340081 is 1800431.

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 a cyclic number.

It is not a de Polignac number, because 1340081 - 2¹⁰ = 1339057 is a prime.

It is a super-2 number, since 2×1340081² = 3591634173122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340083) 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, 176 + ... + 1646.

It is an arithmetic number, because the mean of its divisors is an integer number (335616).

2^1340081 is an apocalyptic number.

It is an amenable number.

1340081 is a deficient number, since it is larger than the sum of its proper divisors (2383).

1340081 is an equidigital number, since it uses as much as digits as its factorization.

1340081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1340081 is about 1157.6186764216. The cubic root of 1340081 is about 110.2495985026.

The spelling of 1340081 in words is "one million, three hundred forty thousand, eighty-one".