235426181 has 2 divisors, whose sum is σ = 235426182. Its totient is φ = 235426180.

The previous prime is 235426151. The next prime is 235426193. The reversal of 235426181 is 181624532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178649956 + 56776225 = 13366^2 + 7535^2 .

It is a cyclic number.

It is not a de Polignac number, because 235426181 - 2⁶ = 235426117 is a prime.

It is a super-2 number, since 2×235426181² = 110850973400489522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235426151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117713090 + 117713091.

It is an arithmetic number, because the mean of its divisors is an integer number (117713091).

Almost surely, 2^235426181 is an apocalyptic number.

It is an amenable number.

235426181 is a deficient number, since it is larger than the sum of its proper divisors (1).

235426181 is an equidigital number, since it uses as much as digits as its factorization.

235426181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

The square root of 235426181 is about 15343.6039117282. The cubic root of 235426181 is about 617.4733987350.

The spelling of 235426181 in words is "two hundred thirty-five million, four hundred twenty-six thousand, one hundred eighty-one".