1347139 has 4 divisors (see below), whose sum is σ = 1349856. Its totient is φ = 1344424.

The previous prime is 1347127. The next prime is 1347149. The reversal of 1347139 is 9317431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9317431 = 167 ⋅55793.

It is a cyclic number.

It is not a de Polignac number, because 1347139 - 2¹⁵ = 1314371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1347149) 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, 379 + ... + 1684.

It is an arithmetic number, because the mean of its divisors is an integer number (337464).

2^1347139 is an apocalyptic number.

1347139 is a deficient number, since it is larger than the sum of its proper divisors (2717).

1347139 is an equidigital number, since it uses as much as digits as its factorization.

1347139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716.

The product of its digits is 2268, while the sum is 28.

The square root of 1347139 is about 1160.6631725010. The cubic root of 1347139 is about 110.4428155624.

The spelling of 1347139 in words is "one million, three hundred forty-seven thousand, one hundred thirty-nine".