355232231 has 2 divisors, whose sum is σ = 355232232. Its totient is φ = 355232230.

The previous prime is 355232209. The next prime is 355232237. The reversal of 355232231 is 132232553.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 355232231 - 2²² = 351037927 is a prime.

It is a super-2 number, since 2×355232231² = 252379875882474722, which contains 22 as substring.

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 355232231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355232237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177616115 + 177616116.

It is an arithmetic number, because the mean of its divisors is an integer number (177616116).

Almost surely, 2^355232231 is an apocalyptic number.

355232231 is a deficient number, since it is larger than the sum of its proper divisors (1).

355232231 is an equidigital number, since it uses as much as digits as its factorization.

355232231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 26.

The square root of 355232231 is about 18847.6054447243. The cubic root of 355232231 is about 708.2242412416.

Adding to 355232231 its reverse (132232553), we get a palindrome (487464784).

The spelling of 355232231 in words is "three hundred fifty-five million, two hundred thirty-two thousand, two hundred thirty-one".