345544253 has 2 divisors, whose sum is σ = 345544254. Its totient is φ = 345544252.

The previous prime is 345544247. The next prime is 345544273. The reversal of 345544253 is 352445543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 334268089 + 11276164 = 18283^2 + 3358^2 .

It is an emirp because it is prime and its reverse (352445543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345544253 - 2⁴ = 345544237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345544223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172772126 + 172772127.

It is an arithmetic number, because the mean of its divisors is an integer number (172772127).

Almost surely, 2^345544253 is an apocalyptic number.

It is an amenable number.

345544253 is a deficient number, since it is larger than the sum of its proper divisors (1).

345544253 is an equidigital number, since it uses as much as digits as its factorization.

345544253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144000, while the sum is 35.

The square root of 345544253 is about 18588.8206457537. The cubic root of 345544253 is about 701.7265224530.

Adding to 345544253 its reverse (352445543), we get a palindrome (697989796).

The spelling of 345544253 in words is "three hundred forty-five million, five hundred forty-four thousand, two hundred fifty-three".