354430231 has 2 divisors, whose sum is σ = 354430232. Its totient is φ = 354430230.

The previous prime is 354430213. The next prime is 354430247. The reversal of 354430231 is 132034453.

Together with previous prime (354430213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (132034453) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354430231 is a prime.

It is a super-2 number, since 2×354430231² = 251241577293426722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 354430196 and 354430205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354430211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177215115 + 177215116.

It is an arithmetic number, because the mean of its divisors is an integer number (177215116).

Almost surely, 2^354430231 is an apocalyptic number.

354430231 is a deficient number, since it is larger than the sum of its proper divisors (1).

354430231 is an equidigital number, since it uses as much as digits as its factorization.

354430231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 354430231 is about 18826.3175103364. The cubic root of 354430231 is about 707.6908588705.

Adding to 354430231 its reverse (132034453), we get a palindrome (486464684).

The spelling of 354430231 in words is "three hundred fifty-four million, four hundred thirty thousand, two hundred thirty-one".