235742261 has 2 divisors, whose sum is σ = 235742262. Its totient is φ = 235742260.

The previous prime is 235742237. The next prime is 235742263. The reversal of 235742261 is 162247532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204661636 + 31080625 = 14306^2 + 5575^2 .

It is a cyclic number.

It is not a de Polignac number, because 235742261 - 2¹⁴ = 235725877 is a prime.

Together with 235742263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235742263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117871130 + 117871131.

It is an arithmetic number, because the mean of its divisors is an integer number (117871131).

Almost surely, 2^235742261 is an apocalyptic number.

It is an amenable number.

235742261 is a deficient number, since it is larger than the sum of its proper divisors (1).

235742261 is an equidigital number, since it uses as much as digits as its factorization.

235742261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 32.

The square root of 235742261 is about 15353.9005142016. The cubic root of 235742261 is about 617.7496122972.

Adding to 235742261 its reverse (162247532), we get a palindrome (397989793).

The spelling of 235742261 in words is "two hundred thirty-five million, seven hundred forty-two thousand, two hundred sixty-one".