1340131 has 4 divisors (see below), whose sum is σ = 1443232. Its totient is φ = 1237032.

The previous prime is 1340113. The next prime is 1340149. The reversal of 1340131 is 1310431.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1340113) and next prime (1340149).

It is a cyclic number.

It is not a de Polignac number, because 1340131 - 2⁹ = 1339619 is a prime.

It is a super-2 number, since 2×1340131² = 3591902194322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 103087 = 1340131 / (1 + 3 + 4 + 0 + 1 + 3 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51531 + ... + 51556.

It is an arithmetic number, because the mean of its divisors is an integer number (360808).

2^1340131 is an apocalyptic number.

1340131 is a deficient number, since it is larger than the sum of its proper divisors (103101).

1340131 is a wasteful number, since it uses less digits than its factorization.

1340131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103100.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1340131 is about 1157.6402722781. The cubic root of 1340131 is about 110.2509696663.

Adding to 1340131 its reverse (1310431), we get a palindrome (2650562).

The spelling of 1340131 in words is "one million, three hundred forty thousand, one hundred thirty-one".