1347231 has 4 divisors (see below), whose sum is σ = 1796312. Its totient is φ = 898152.

The previous prime is 1347223. The next prime is 1347263. The reversal of 1347231 is 1327431.

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

It is not a de Polignac number, because 1347231 - 2³ = 1347223 is a prime.

It is a super-2 number, since 2×1347231² = 3630062734722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1347198 and 1347207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347211) 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, 224536 + ... + 224541.

It is an arithmetic number, because the mean of its divisors is an integer number (449078).

2^1347231 is an apocalyptic number.

1347231 is a deficient number, since it is larger than the sum of its proper divisors (449081).

1347231 is an equidigital number, since it uses as much as digits as its factorization.

1347231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449080.

The product of its digits is 504, while the sum is 21.

The square root of 1347231 is about 1160.7028043388. The cubic root of 1347231 is about 110.4453296578.

The spelling of 1347231 in words is "one million, three hundred forty-seven thousand, two hundred thirty-one".