1340545 has 16 divisors (see below), whose sum is σ = 1722240. Its totient is φ = 998784.

The previous prime is 1340527. The next prime is 1340557. The reversal of 1340545 is 5450431.

It is a cyclic number.

It is not a de Polignac number, because 1340545 - 2⁹ = 1340033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9717 + ... + 9853.

It is an arithmetic number, because the mean of its divisors is an integer number (107640).

2^1340545 is an apocalyptic number.

It is an amenable number.

1340545 is a deficient number, since it is larger than the sum of its proper divisors (381695).

1340545 is a wasteful number, since it uses less digits than its factorization.

1340545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1340545 is about 1157.8190704942. The cubic root of 1340545 is about 110.2623215919.

Adding to 1340545 its reverse (5450431), we get a palindrome (6790976).

The spelling of 1340545 in words is "one million, three hundred forty thousand, five hundred forty-five".