1391307 has 8 divisors (see below), whose sum is σ = 1880784. Its totient is φ = 914688.

The previous prime is 1391287. The next prime is 1391317. The reversal of 1391307 is 7031931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1391307 - 2⁸ = 1391051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1391317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2958 + ... + 3395.

It is an arithmetic number, because the mean of its divisors is an integer number (235098).

2^1391307 is an apocalyptic number.

1391307 is a deficient number, since it is larger than the sum of its proper divisors (489477).

1391307 is an equidigital number, since it uses as much as digits as its factorization.

1391307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6429.

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 1391307 is about 1179.5367734836. The cubic root of 1391307 is about 111.6368713358.

The spelling of 1391307 in words is "one million, three hundred ninety-one thousand, three hundred seven".