1340161 has 8 divisors (see below), whose sum is σ = 1465344. Its totient is φ = 1220160.

The previous prime is 1340159. The next prime is 1340179. The reversal of 1340161 is 1610431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1340161 - 2¹ = 1340159 is a prime.

It is a Duffinian number.

1340161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1340561) 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, 745 + ... + 1798.

It is an arithmetic number, because the mean of its divisors is an integer number (183168).

2^1340161 is an apocalyptic number.

It is an amenable number.

1340161 is a deficient number, since it is larger than the sum of its proper divisors (125183).

1340161 is a wasteful number, since it uses less digits than its factorization.

1340161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1340161 is about 1157.6532295986. The cubic root of 1340161 is about 110.2517923482.

Adding to 1340161 its reverse (1610431), we get a palindrome (2950592).

The spelling of 1340161 in words is "one million, three hundred forty thousand, one hundred sixty-one".