235871 has 2 divisors, whose sum is σ = 235872. Its totient is φ = 235870.

The previous prime is 235849. The next prime is 235877. The reversal of 235871 is 178532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 235871 - 2¹⁰ = 234847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 235871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117935 + 117936.

It is an arithmetic number, because the mean of its divisors is an integer number (117936).

2²³⁵⁸⁷¹ is an apocalyptic number.

235871 is a deficient number, since it is larger than the sum of its proper divisors (1).

235871 is an equidigital number, since it uses as much as digits as its factorization.

235871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 26.

The square root of 235871 is about 485.6655227623. The cubic root of 235871 is about 61.7862042987.

The spelling of 235871 in words is "two hundred thirty-five thousand, eight hundred seventy-one".