291214 has 32 divisors (see below), whose sum is σ = 571392. Its totient is φ = 108000.

The previous prime is 291209. The next prime is 291217. The reversal of 291214 is 412192.

291214 = T₁₃₀ + T₁₃₁ + ... + T₁₅₇.

It is a junction number, because it is equal to n+sod(n) for n = 291191 and 291200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (291217) by changing a digit.

291214 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4744 + ... + 4804.

It is an arithmetic number, because the mean of its divisors is an integer number (17856).

2²⁹¹²¹⁴ is an apocalyptic number.

291214 is a deficient number, since it is larger than the sum of its proper divisors (280178).

291214 is a wasteful number, since it uses less digits than its factorization.

291214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112.

The product of its digits is 144, while the sum is 19.

The square root of 291214 is about 539.6424742364. The cubic root of 291214 is about 66.2832940520.

It can be divided in two parts, 2912 and 14, that added together give a triangular number (2926 = T₇₆).

The spelling of 291214 in words is "two hundred ninety-one thousand, two hundred fourteen".