1343670137 has 4 divisors (see below), whose sum is σ = 1390003620. Its totient is φ = 1297336656.

The previous prime is 1343670131. The next prime is 1343670161. The reversal of 1343670137 is 7310763431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7310763431 = 4423 ⋅1652897.

It can be written as a sum of positive squares in 2 ways, for example, as 277255801 + 1066414336 = 16651^2 + 32656^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343670137 - 2⁴ = 1343670121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1343670097 and 1343670106.

It is not an unprimeable number, because it can be changed into a prime (1343670131) 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, 23166698 + ... + 23166755.

It is an arithmetic number, because the mean of its divisors is an integer number (347500905).

Almost surely, 2^1343670137 is an apocalyptic number.

It is an amenable number.

1343670137 is a deficient number, since it is larger than the sum of its proper divisors (46333483).

1343670137 is an equidigital number, since it uses as much as digits as its factorization.

1343670137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46333482.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 1343670137 is about 36656.1064080734. The cubic root of 1343670137 is about 1103.4793787400.

The spelling of 1343670137 in words is "one billion, three hundred forty-three million, six hundred seventy thousand, one hundred thirty-seven".