1340335061 has 8 divisors (see below), whose sum is σ = 1444849560. Its totient is φ = 1236022272.

The previous prime is 1340335057. The next prime is 1340335099. The reversal of 1340335061 is 1605330431.

It can be written as a sum of positive squares in 4 ways, for example, as 127554436 + 1212780625 = 11294^2 + 34825^2 .

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 1340335061 - 2² = 1340335057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1340335061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340335001) 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, 36476 + ... + 63333.

It is an arithmetic number, because the mean of its divisors is an integer number (180606195).

Almost surely, 2^1340335061 is an apocalyptic number.

It is an amenable number.

1340335061 is a deficient number, since it is larger than the sum of its proper divisors (104514499).

1340335061 is a wasteful number, since it uses less digits than its factorization.

1340335061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100855.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 1340335061 is about 36610.5867338943. The cubic root of 1340335061 is about 1102.5656533353.

Adding to 1340335061 its reverse (1605330431), we get a palindrome (2945665492).

The spelling of 1340335061 in words is "one billion, three hundred forty million, three hundred thirty-five thousand, sixty-one".