167291 has 4 divisors (see below), whose sum is σ = 168432. Its totient is φ = 166152.

The previous prime is 167269. The next prime is 167309. The reversal of 167291 is 192761.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 192761 = 53 ⋅3637.

It is a cyclic number.

It is not a de Polignac number, because 167291 - 2¹⁴ = 150907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 167291.

It is not an unprimeable number, because it can be changed into a prime (167221) 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 3 ways as a sum of consecutive naturals, for example, 311 + ... + 656.

It is an arithmetic number, because the mean of its divisors is an integer number (42108).

2¹⁶⁷²⁹¹ is an apocalyptic number.

167291 is a deficient number, since it is larger than the sum of its proper divisors (1141).

167291 is an equidigital number, since it uses as much as digits as its factorization.

167291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140.

The product of its digits is 756, while the sum is 26.

The square root of 167291 is about 409.0122247562. The cubic root of 167291 is about 55.1007519635.

The spelling of 167291 in words is "one hundred sixty-seven thousand, two hundred ninety-one".