345342253 has 2 divisors, whose sum is σ = 345342254. Its totient is φ = 345342252.

The previous prime is 345342251. The next prime is 345342269. The reversal of 345342253 is 352243543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345290724 + 51529 = 18582^2 + 227^2 .

It is a cyclic number.

It is not a de Polignac number, because 345342253 - 2¹ = 345342251 is a prime.

It is a super-2 number, since 2×345342253² = 238522543414232018, which contains 22 as substring.

Together with 345342251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345342251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172671126 + 172671127.

It is an arithmetic number, because the mean of its divisors is an integer number (172671127).

Almost surely, 2^345342253 is an apocalyptic number.

It is an amenable number.

345342253 is a deficient number, since it is larger than the sum of its proper divisors (1).

345342253 is an equidigital number, since it uses as much as digits as its factorization.

345342253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 31.

The square root of 345342253 is about 18583.3864782499. The cubic root of 345342253 is about 701.5897561906.

Adding to 345342253 its reverse (352243543), we get a palindrome (697585796).

The spelling of 345342253 in words is "three hundred forty-five million, three hundred forty-two thousand, two hundred fifty-three".