1340846197 has 4 divisors (see below), whose sum is σ = 1343717856. Its totient is φ = 1337974540.

The previous prime is 1340846189. The next prime is 1340846201. The reversal of 1340846197 is 7916480431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1340846197 - 2³ = 1340846189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340846107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435129 + ... + 1436062.

It is an arithmetic number, because the mean of its divisors is an integer number (335929464).

Almost surely, 2^1340846197 is an apocalyptic number.

It is an amenable number.

1340846197 is a deficient number, since it is larger than the sum of its proper divisors (2871659).

1340846197 is an equidigital number, since it uses as much as digits as its factorization.

1340846197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871658.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1340846197 is about 36617.5667815326. The cubic root of 1340846197 is about 1102.7057897812.

The spelling of 1340846197 in words is "one billion, three hundred forty million, eight hundred forty-six thousand, one hundred ninety-seven".