1307231 has 4 divisors (see below), whose sum is σ = 1314000. Its totient is φ = 1300464.

The previous prime is 1307221. The next prime is 1307261. The reversal of 1307231 is 1327031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1327031 = 23 ⋅57697.

It is a cyclic number.

It is not a de Polignac number, because 1307231 - 2¹⁴ = 1290847 is a prime.

It is a super-2 number, since 2×1307231² = 3417705774722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307221) 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, 3086 + ... + 3483.

It is an arithmetic number, because the mean of its divisors is an integer number (328500).

2^1307231 is an apocalyptic number.

1307231 is a deficient number, since it is larger than the sum of its proper divisors (6769).

1307231 is an equidigital number, since it uses as much as digits as its factorization.

1307231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6768.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 1307231 is about 1143.3420310651. The cubic root of 1307231 is about 109.3412697078.

The spelling of 1307231 in words is "one million, three hundred seven thousand, two hundred thirty-one".