235243391 has 2 divisors, whose sum is σ = 235243392. Its totient is φ = 235243390.

The previous prime is 235243343. The next prime is 235243417. The reversal of 235243391 is 193342532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 235243391 - 2¹⁴ = 235227007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235243321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117621695 + 117621696.

It is an arithmetic number, because the mean of its divisors is an integer number (117621696).

Almost surely, 2^235243391 is an apocalyptic number.

235243391 is a deficient number, since it is larger than the sum of its proper divisors (1).

235243391 is an equidigital number, since it uses as much as digits as its factorization.

235243391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 32.

The square root of 235243391 is about 15337.6462014222. The cubic root of 235243391 is about 617.3135507722.

The spelling of 235243391 in words is "two hundred thirty-five million, two hundred forty-three thousand, three hundred ninety-one".