391059 has 6 divisors (see below), whose sum is σ = 564876. Its totient is φ = 260700.

The previous prime is 391057. The next prime is 391063. The reversal of 391059 is 950193.

391059 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 391059 - 2¹ = 391057 is a prime.

391059 is strictly pandigital in base 7.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (391057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21717 + ... + 21734.

It is an arithmetic number, because the mean of its divisors is an integer number (94146).

2³⁹¹⁰⁵⁹ is an apocalyptic number.

391059 is a deficient number, since it is larger than the sum of its proper divisors (173817).

391059 is a wasteful number, since it uses less digits than its factorization.

391059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43457 (or 43454 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 391059 is about 625.3471036153. The cubic root of 391059 is about 73.1275059409.

It can be divided in two parts, 3910 and 59, that added together give a square (3969 = 63²).

The spelling of 391059 in words is "three hundred ninety-one thousand, fifty-nine".