235404137 has 2 divisors, whose sum is σ = 235404138. Its totient is φ = 235404136.

The previous prime is 235404119. The next prime is 235404157. The reversal of 235404137 is 731404532.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200958976 + 34445161 = 14176^2 + 5869^2 .

It is a cyclic number.

It is not a de Polignac number, because 235404137 - 2⁸ = 235403881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (235404157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117702068 + 117702069.

It is an arithmetic number, because the mean of its divisors is an integer number (117702069).

Almost surely, 2^235404137 is an apocalyptic number.

It is an amenable number.

235404137 is a deficient number, since it is larger than the sum of its proper divisors (1).

235404137 is an equidigital number, since it uses as much as digits as its factorization.

235404137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 235404137 is about 15342.8855499870. The cubic root of 235404137 is about 617.4541258736.

Adding to 235404137 its reverse (731404532), we get a palindrome (966808669).

The spelling of 235404137 in words is "two hundred thirty-five million, four hundred four thousand, one hundred thirty-seven".