235422251 has 2 divisors, whose sum is σ = 235422252. Its totient is φ = 235422250.

The previous prime is 235422221. The next prime is 235422263. The reversal of 235422251 is 152224532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235422251 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 235422251.

It is not a weakly prime, because it can be changed into another prime (235422211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117711125 + 117711126.

It is an arithmetic number, because the mean of its divisors is an integer number (117711126).

Almost surely, 2^235422251 is an apocalyptic number.

235422251 is a deficient number, since it is larger than the sum of its proper divisors (1).

235422251 is an equidigital number, since it uses as much as digits as its factorization.

235422251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 26.

The square root of 235422251 is about 15343.4758448013. The cubic root of 235422251 is about 617.4699628611.

Adding to 235422251 its reverse (152224532), we get a palindrome (387646783).

The spelling of 235422251 in words is "two hundred thirty-five million, four hundred twenty-two thousand, two hundred fifty-one".