345419953 has 2 divisors, whose sum is σ = 345419954. Its totient is φ = 345419952.

The previous prime is 345419933. The next prime is 345419959. The reversal of 345419953 is 359914543.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254179249 + 91240704 = 15943^2 + 9552^2 .

It is an emirp because it is prime and its reverse (359914543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345419953 - 2⁹ = 345419441 is a prime.

It is not a weakly prime, because it can be changed into another prime (345419959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172709976 + 172709977.

It is an arithmetic number, because the mean of its divisors is an integer number (172709977).

Almost surely, 2^345419953 is an apocalyptic number.

It is an amenable number.

345419953 is a deficient number, since it is larger than the sum of its proper divisors (1).

345419953 is an equidigital number, since it uses as much as digits as its factorization.

345419953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 43.

The square root of 345419953 is about 18585.4769376522. The cubic root of 345419953 is about 701.6423701175.

The spelling of 345419953 in words is "three hundred forty-five million, four hundred nineteen thousand, nine hundred fifty-three".