1340953 has 4 divisors (see below), whose sum is σ = 1366308. Its totient is φ = 1315600.

The previous prime is 1340947. The next prime is 1340959. The reversal of 1340953 is 3590431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3590431 = 13 ⋅276187.

It is an interprime number because it is at equal distance from previous prime (1340947) and next prime (1340959).

It can be written as a sum of positive squares in 2 ways, for example, as 915849 + 425104 = 957^2 + 652^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340953 - 2⁹ = 1340441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340959) 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, 12598 + ... + 12703.

It is an arithmetic number, because the mean of its divisors is an integer number (341577).

2^1340953 is an apocalyptic number.

It is an amenable number.

1340953 is a deficient number, since it is larger than the sum of its proper divisors (25355).

1340953 is an equidigital number, since it uses as much as digits as its factorization.

1340953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25354.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1340953 is about 1157.9952504220. The cubic root of 1340953 is about 110.2735067104.

The spelling of 1340953 in words is "one million, three hundred forty thousand, nine hundred fifty-three".