235541 has 2 divisors, whose sum is σ = 235542. Its totient is φ = 235540.

The previous prime is 235537. The next prime is 235553. The reversal of 235541 is 145532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220900 + 14641 = 470^2 + 121^2 .

It is a cyclic number.

It is not a de Polignac number, because 235541 - 2² = 235537 is a prime.

It is equal to p₂₀₈₇₃ and since 235541 and 20873 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 235541.

It is not a weakly prime, because it can be changed into another prime (235591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117770 + 117771.

It is an arithmetic number, because the mean of its divisors is an integer number (117771).

2²³⁵⁵⁴¹ is an apocalyptic number.

It is an amenable number.

235541 is a deficient number, since it is larger than the sum of its proper divisors (1).

235541 is an equidigital number, since it uses as much as digits as its factorization.

235541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 600, while the sum is 20.

The square root of 235541 is about 485.3256638588. The cubic root of 235541 is about 61.7573764456.

Subtracting from 235541 its reverse (145532), we obtain a palindrome (90009).

The spelling of 235541 in words is "two hundred thirty-five thousand, five hundred forty-one".