191459 has 2 divisors, whose sum is σ = 191460. Its totient is φ = 191458.

The previous prime is 191453. The next prime is 191461. The reversal of 191459 is 954191.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-191459 is a prime.

It is a Sophie Germain prime.

Together with 191461, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (191453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95729 + 95730.

It is an arithmetic number, because the mean of its divisors is an integer number (95730).

2¹⁹¹⁴⁵⁹ is an apocalyptic number.

191459 is a deficient number, since it is larger than the sum of its proper divisors (1).

191459 is an equidigital number, since it uses as much as digits as its factorization.

191459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 29.

The square root of 191459 is about 437.5602815613. The cubic root of 191459 is about 57.6357473253.

The spelling of 191459 in words is "one hundred ninety-one thousand, four hundred fifty-nine".