1340913 has 8 divisors (see below), whose sum is σ = 2043328. Its totient is φ = 766224.

The previous prime is 1340903. The next prime is 1340929. The reversal of 1340913 is 3190431.

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

It is not a de Polignac number, because 1340913 - 2⁴ = 1340897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 63853 = 1340913 / (1 + 3 + 4 + 0 + 9 + 1 + 3).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1340913.

It is not an unprimeable number, because it can be changed into a prime (1340903) 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, 31906 + ... + 31947.

It is an arithmetic number, because the mean of its divisors is an integer number (255416).

2^1340913 is an apocalyptic number.

It is an amenable number.

1340913 is a deficient number, since it is larger than the sum of its proper divisors (702415).

1340913 is an equidigital number, since it uses as much as digits as its factorization.

1340913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63863.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1340913 is about 1157.9779790652. The cubic root of 1340913 is about 110.2724102304.

The spelling of 1340913 in words is "one million, three hundred forty thousand, nine hundred thirteen".