601391 has 8 divisors (see below), whose sum is σ = 700704. Its totient is φ = 505440.

The previous prime is 601379. The next prime is 601397. The reversal of 601391 is 193106.

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

It is a cyclic number.

It is not a de Polignac number, because 601391 - 2¹⁰ = 600367 is a prime.

It is a super-2 number, since 2×601391² = 723342269762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 601391.

It is not an unprimeable number, because it can be changed into a prime (601397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440 + ... + 1181.

It is an arithmetic number, because the mean of its divisors is an integer number (87588).

2⁶⁰¹³⁹¹ is an apocalyptic number.

601391 is a deficient number, since it is larger than the sum of its proper divisors (99313).

601391 is a wasteful number, since it uses less digits than its factorization.

601391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 601391 is about 775.4940360828. The cubic root of 601391 is about 84.4083948285.

Adding to 601391 its reverse (193106), we get a palindrome (794497).

The spelling of 601391 in words is "six hundred one thousand, three hundred ninety-one".