391134 has 32 divisors (see below), whose sum is σ = 852480. Its totient is φ = 119232.

The previous prime is 391133. The next prime is 391151. The reversal of 391134 is 431193.

It is a self number, because there is not a number n which added to its sum of digits gives 391134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5322 + ... + 5394.

It is an arithmetic number, because the mean of its divisors is an integer number (26640).

2³⁹¹¹³⁴ is an apocalyptic number.

391134 is an abundant number, since it is smaller than the sum of its proper divisors (461346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

391134 is a wasteful number, since it uses less digits than its factorization.

391134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144.

The product of its digits is 324, while the sum is 21.

The square root of 391134 is about 625.4070674369. The cubic root of 391134 is about 73.1321806083.

It can be divided in two parts, 391 and 134, that added together give a palindrome (525).

The spelling of 391134 in words is "three hundred ninety-one thousand, one hundred thirty-four".