345174493 has 2 divisors, whose sum is σ = 345174494. Its totient is φ = 345174492.

The previous prime is 345174481. The next prime is 345174521. The reversal of 345174493 is 394471543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224460324 + 120714169 = 14982^2 + 10987^2 .

It is a cyclic number.

It is not a de Polignac number, because 345174493 - 2⁵ = 345174461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345174293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172587246 + 172587247.

It is an arithmetic number, because the mean of its divisors is an integer number (172587247).

Almost surely, 2^345174493 is an apocalyptic number.

It is an amenable number.

345174493 is a deficient number, since it is larger than the sum of its proper divisors (1).

345174493 is an equidigital number, since it uses as much as digits as its factorization.

345174493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The square root of 345174493 is about 18578.8722208857. The cubic root of 345174493 is about 701.4761319428.

The spelling of 345174493 in words is "three hundred forty-five million, one hundred seventy-four thousand, four hundred ninety-three".