391126 has 8 divisors (see below), whose sum is σ = 589680. Its totient is φ = 194568.

The previous prime is 391117. The next prime is 391133. The reversal of 391126 is 621193.

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

It is a junction number, because it is equal to n+sod(n) for n = 391097 and 391106.

It is a congruent number.

It is an unprimeable number.

391126 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175 + ... + 901.

It is an arithmetic number, because the mean of its divisors is an integer number (73710).

2³⁹¹¹²⁶ is an apocalyptic number.

391126 is a deficient number, since it is larger than the sum of its proper divisors (198554).

391126 is a wasteful number, since it uses less digits than its factorization.

391126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998.

The product of its digits is 324, while the sum is 22.

The square root of 391126 is about 625.4006715698. The cubic root of 391126 is about 73.1316820056.

The spelling of 391126 in words is "three hundred ninety-one thousand, one hundred twenty-six".