345523019 has 2 divisors, whose sum is σ = 345523020. Its totient is φ = 345523018.

The previous prime is 345523001. The next prime is 345523049. The reversal of 345523019 is 910325543.

It is a weak prime.

It is an emirp because it is prime and its reverse (910325543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345523019 - 2⁸ = 345522763 is a prime.

It is a super-2 number, since 2×345523019² = 238772313317748722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (345523049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172761509 + 172761510.

It is an arithmetic number, because the mean of its divisors is an integer number (172761510).

Almost surely, 2^345523019 is an apocalyptic number.

345523019 is a deficient number, since it is larger than the sum of its proper divisors (1).

345523019 is an equidigital number, since it uses as much as digits as its factorization.

345523019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 345523019 is about 18588.2494872433. The cubic root of 345523019 is about 701.7121482534.

The spelling of 345523019 in words is "three hundred forty-five million, five hundred twenty-three thousand, nineteen".