1307213 has 4 divisors (see below), whose sum is σ = 1323840. Its totient is φ = 1290588.

The previous prime is 1307209. The next prime is 1307221. The reversal of 1307213 is 3127031.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3127031 = 17 ⋅183943.

It is a cyclic number.

It is not a de Polignac number, because 1307213 - 2² = 1307209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1307191 and 1307200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303213) 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, 8195 + ... + 8352.

It is an arithmetic number, because the mean of its divisors is an integer number (330960).

2^1307213 is an apocalyptic number.

It is an amenable number.

1307213 is a deficient number, since it is larger than the sum of its proper divisors (16627).

1307213 is an equidigital number, since it uses as much as digits as its factorization.

1307213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16626.

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

The square root of 1307213 is about 1143.3341593777. The cubic root of 1307213 is about 109.3407678450.

The spelling of 1307213 in words is "one million, three hundred seven thousand, two hundred thirteen".