345547453 has 2 divisors, whose sum is σ = 345547454. Its totient is φ = 345547452.

The previous prime is 345547451. The next prime is 345547481. The reversal of 345547453 is 354745543.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283484569 + 62062884 = 16837^2 + 7878^2 .

It is an emirp because it is prime and its reverse (354745543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345547453 - 2¹ = 345547451 is a prime.

Together with 345547451, 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 (345547451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172773726 + 172773727.

It is an arithmetic number, because the mean of its divisors is an integer number (172773727).

Almost surely, 2^345547453 is an apocalyptic number.

It is an amenable number.

345547453 is a deficient number, since it is larger than the sum of its proper divisors (1).

345547453 is an equidigital number, since it uses as much as digits as its factorization.

345547453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 40.

The square root of 345547453 is about 18588.9067187933. The cubic root of 345547453 is about 701.7286886183.

The spelling of 345547453 in words is "three hundred forty-five million, five hundred forty-seven thousand, four hundred fifty-three".