391162 has 4 divisors (see below), whose sum is σ = 586746. Its totient is φ = 195580.

The previous prime is 391159. The next prime is 391163. The reversal of 391162 is 261193.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 269361 + 121801 = 519^2 + 349^2 .

It is not an unprimeable number, because it can be changed into a prime (391163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97789 + ... + 97792.

2³⁹¹¹⁶² is an apocalyptic number.

391162 is a deficient number, since it is larger than the sum of its proper divisors (195584).

391162 is a wasteful number, since it uses less digits than its factorization.

391162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195583.

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

The square root of 391162 is about 625.4294524565. The cubic root of 391162 is about 73.1339256643.

The spelling of 391162 in words is "three hundred ninety-one thousand, one hundred sixty-two".